What did Chargaff discover while studying bases in the DNA of organisms?

Answers

Answer 1

Answer: The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.

Explanation:


Related Questions

The list below represents some dominant and recessive traits observed in pea plants.
Dominant
Recessive
Green pods (G) Yellow pods (g)
Smooth seeds (S) Wrinkled seeds (s)
To produce 100% offspring with yellow pods and wrinkled seeds, what parental genotypes must a researcher use?
O GGSS X Ggss
ggSS X GgSS
O GGss X SSGG
ggss X ggss​

Answers

Answer:

ggss x ggss

Explanation:

To produce 100% offspring having yellow pods (g) and wrinkled seed (s), we need to cross two organisms having yellow pods and wrinkled seeds.

You'll understand more by the Punnett square in the attached file.

Tachycardia, decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side are clinical manifestations of:__________
A) Sarcoidosis
B) Pneumothorax
C) Hypersensitivity pneumonitis
D) adult respiratory distress syndrome

Answers

Answer: Option B.

Pneumothorax

Explanation:

Pneumothorax occurs when air buildup between the chest wall and the lungs thereby leading to increased pressure in the chest and it inturn decrease the amount of blood that flow back to the heart because the blood find it difficult to force it's way into the chest and the heart. This is cause by injury to the chest, lung danage, rupture air blisters and mechanical ventilation.

The symptoms include decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side , racing heart, shock.

When a pneumothorax is large, a needle or tube is used to remove excess air.

What three different genotypes are possible for an individual in this population

Answers

Answer:

With alleles 'A' and 'a' there are three possible genotypes AA, Aa and aa

Explanation:

Pls mark as brainliest answer

What is Mary and Jim’s hypothesis?

Answers

Answer:

In this case, the scientist want to test the presence of the limonite in the yellow rocks, So, proposed hypothesis should include the color of rock they want to observe and the posssible outcome, which need to be tested. So, a proposed hypothesis can be: The rocks, which have yellow color are made up of mineral lime.

Answer:

They hypothesized that the rock includes large pieces of the mineral limonite.

Explanation:

...

Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. How would you conduct your investigation? In your answer, explain your independent and dependent variable?

Answers

Answer:

The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.

Explanation:

Will try to give brainliest PLEASE HELP ASAP
What are the three stop codons? What is the start codon?

Answers

Answer:

UGA, UAA, and UAG

Explanation:

Each three-letter sequence of mRNA nucleotides corresponds to a specific amino acid, or to a stop codon. UGA, UAA, and UAG are stop codons

Answer:not sure

Explanation:

Not sure

Q23 Which of the following describes the correct relationship between heart sounds and blood pressure? A.Systolic blood pressure is associated with the first heart sound. B. Systolic blood pressure is associated with the second heart sound. C. Diastolic blood pressure is associated with the first heart sound. D. Diastolic blood pressure is associated with the second heart sound.

Answers

Answer:

diolostic blood preasure is associated with the second heart sound

Explanation:

Korotkoff sounds are the sounds heard by the health professional who measures the blood pressure with a blood pressure monitor and a stethoscope placed on the patient's brachial artery.

Korotkoff described five types of noise:

* The first sound is a snap corresponding to the systolic pressure. The noise is clear, repetitive on at least two consecutive systoles.

* The second sound is a soft whisper, more or less prolonged, audible between the systolic pressure and the diastolic pressure.

what is scientific advancement? describe characteristics

Answers

Scientific or technological advancement is the generation of information or the discovery of knowledge that advances the understanding of scientific relations or technology. This definition encompasses the definition of scientific advancement, advancement of scientific knowledge and technological advancement. The only difference is that scientific advancement and advancement of scientific knowledge relate to science whereas technological advancement relates to technology.

PLEASE HELP ME ASAP Which statement describes surface waves? They arrive before S waves. They travel faster than P waves. They are produced by P and S waves. They travel deep below Earth’s surface.

Answers

Answer:

They are produced by P and S waves

Explanation:

Got it right on Edge 2020

Answer:

produced by p and s waves

Explanation:

which of the following adaptions allowed plants to transport water and nutrients from the soil to all of the cells within the plant?
A. Vascular system
B. Leaves
C.Cuticle
D. circulatory system

Answers

Answer:

c

Explanation:

I took the test

Answer:

D. circulatory system

Explanation:

Circulatory system is the method of transport of plants and animals. It gives the plants nutrients and carbon dioxide in every cell and release waste products from their system.

How do you think pollination takes place in flowering plants?

Answers

Answer:

My answer is down below.

Explanation:

Pollination occurs when the transfer of pollen grains from the anthers to the stigma of a flower of the same species take place. After reaching the stigma of the flower of the same kind of plant, the pollen grains absorb moisture from the stigma surface and begins to grow a tube. This tube is called the pollen tube.

Explanation:

insects typically pollinate flowers as they move from plant to plant searching for food. when an instects lands on a flower to feed, pollen grains sticks to its body. As the instects moves to another flower of the same species, these pollen grains are transferred to the flower's stigma and pollination occurs.

answer the questions above​

Answers

Answer:

Hey there!

3) Well injection is usually done through the vein because they need the substance to go into the blood.

4) Some people believe that the heart is on the left side because its the left ventricle and atrium responsible and when people hear left they think the heart is on the left.

5) People living in high altitudes don't get as much oxygen so their bodies evolved into carrying ,more RBC so more oxygen is carried into their bodies.

Hope this helps :)

What marked the end of the Precambrian period? A. The appearance of complex, multicellular animals B. The division between archaea and eukarya C. The emergence of simple, protist-like animals D. The development of DNA-based viruses Mark for review (Will be highlighted on the review page)

Answers

Answer:

A. The appearance of complex, multicellular animals

Explanation:

Precambrian period is the earliest period in the history of the earth. It was characterized by different evolutionary characteristics and differences.

The end of this period was marked with The appearance of complex, multicellular animals which were able to perform complex tasks

Answer:

A. The appearance of complex, multicellular animals

Explanation:

Section 5.2 ✔

How does the cell wall protect a plant cell? A) The cell wall protect the cell by providing support and maintaining the cell's shape. B) The cell wall protects the cell by storing food so the plant doesn't run out. C) The cell wall is thin and flexible, which allows the cell to be moved without harming the organelles. D) The cell wall is on inside of the cell and serves to contain the contents of the cell.

Answers

Answer: the cell wall protects the cell by providing support and maintaining the cells shape

Explanation:

The cell wall protects the cell by providing support and maintaining the cell's shape.

CELL WALL:

The cell wall is a structure found in certain cells like plant cells, Bacteria cell etc. The cell wall is located outside the cell and bounds the cell content.

The cell wall of plants majorly contain a polysaccharide called cellulose. The cellulose content of plants cell wall is responsible for its protective function by giving the cell a rigid shape.

The plant cell wall helps protect the plant cell by providing support and maintaining the cell's shape.

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The paranasal sinuses are lined with a membrane that creates mucus during allergies or the common cold. Presence of mucus and swelling of the membranes can cause a "sinus headache." If Regina has a cold and she feels the pain of a sinus headache inferior to her eyes, which bone is housing the affected paranasal sinus?

Answers

Answer:

The maxillary sinus, that is, the sinus located in the upper jaw, would be affected.

Explanation:

Sinusitis is a very traditional disease that is associated with headache, discomfort, and increased mucus making.

The causes can be viral or bacterial or even by some inhaled noxa, sinusitis of this type is bilateral, different from sinusitis of dental cause that are usually unilateral.

The paranasal sinuses are the sinuses that pneumatize the head, that is, they generate an internal air current in the bones to be able to heat and disinfect them from those noxas that are inhaled (that is why they are covered by a ciliated mucosa that drags the noxa to the outside and also its structure is pseostratified with mucous cells that secrete mucus enveloping the noxa).

Another function of the paranasal sinuses is to be able to alleviate the weight of the head, since the shell and the bones that remain in the head formation are very heavy, thus generating these cavities filled with air to alleviate the feeling of "heavy head" "When they become inflamed and filled with mucus, they are obliterated or with a reduced space, so the head feels heavier for some people.

The paranasal sinuses are the maxillary sinuses that are in the upper jaw, the sphenoid sinuses that are in the sphenoid, the ethmoid sinuses that are in the ethmoid and the frontal ones that are in the frontal bone that is vulgarly called as the forehead.

I’m clueless, help me please thank you

Answers

I’m pretty sure it’s going to be B

You are designing a sustainable living space for the Mars Colony Mission. The colony will have plants growing inside of it
to recycle the carbon dioxide. You need to determine what type of lighting will be most beneficial to the plants. First you
pick a small set of sample plants and grow each in a different lighting. What is the BEST way to measure their
effectiveness?
Question Progress a
A. Measure the oxygen produced by the plant using a gas syringe,
B. Measure the pigment density in the leaves using a spectrophotometer,
C. Measure the carbon dioxide produced by the plant using a gas syringe.
DAMeasure the height of the plant with a ruler.

Answers

Answer:

Option A is the most appropriate answer.

Explanation:

The arrangement has plants being drenched in a water container to discharge Oxygen gas that is freed and gathered in a tube placed previously. The volume of gas gathered can be utilized to find out the rate of photosynthesis and whenever coupled by methods for pH observing gadget, an expansion in pH which shows soluble alkaline means that more oxygen yield. Along these lines, this method can be utilized to then again check CO2 levels. The gas syringe is utilized to permit the oxygen gas bubbles to be gathered at the known for evacuation and estimation purposes.

This photosynthometer is combined with a hydrogen carbonate indicator evaluating CO2 levels. At neutral levels in comparing with different cases, the shading is orange and there is a progressive change to yellow shading is CO2 focus is high. At low focus, the shading turns out to be a lot darker (purplish).

Thus, the correct answer is option A.

Answer:

A

Explanation:

use a gas test

A storm brings two formerly separated populations of beetles together. They look very similar. Under the biological species concept, which of the following would show that the two populations are different species?
A. One population breeds in spring, the other in fall.
B. Males of the two populations have different flight patterns in courtship.
C. When individuals from the two populations mate with each other in the laboratory, the eggs fail to hatch.
D. All of the above is correct.
E. None of the above is correct.

Answers

Answer:

The correct option is D: All of the above is correct.

Explanation:

The biological species concept says that species are population groups that, in a real or potential way, can reproduce among each other and that are reproductively isolated from other groups.

Individuals belonging to a species cannot mate with members of other species, and if they do there is not any reproductive success.    

The mechanisms of reproductive isolation might be divided in prezygotic and postzygotic.

Prezygotic or Premating mechanisms:

Ecological or due to habitat isolationSeasonal or temporal. This is the case described in option A "One population breeds in spring, the other in fall". These species are reproductively isolated because they differ in their breeding season.Sexual or ethological. This is the case described in option B "Males of the two populations have different flight patterns in courtship". Males belonging to each species behave differently during courtship. MechanicalGametes incompatibility

Zygotic or Postmating Mechanisms:

Hybrid inviability. This is the case described in option C which states that "When individuals from the two populations mate with each other in the laboratory, the eggs fail to hatch". Eggs fail to hatch because the zygote is inviable. Hybrid sterilityHybrid decreased fertility

What does the theory of plate tectonics state about the earth?

A. The inner core is divided into plates that glide under the mantle.

B. The inner core is made up of a mantle that is covered by plates.

C. The outer shell is divided into plates that glide over the mantle.

D. The outer shell is made up of a mantle that sits on top of plates.

Answers

Answer:

A & B are wrong so it's either C or D and I chose C

Explanation:

Because the theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle.

Not all of the members of everyday categories have the same. Most fish have gills, fins, and scales. Sharks lack the feature of scales, yet they are still categorized as fish. This is most problematic for the __________ approach to categorization.

Answers

Answer:

species to

Explanation:

The cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

Answers

Answer

The correct answer is option D, that is, cell produce through the spontaneous generation.

Rate me please :):)

It is now recognized that life originates from prior life and that cells originate from preexisting cells as a result of experiments and the discovery of the microscope. Thus, option D is correct.

What is original cell theory?

All living things are made up of one or more cells, which is one of the three principles of the cell theory. The fundamental unit of structure and organization in organisms is the cell.

While doing studies on tissues in the late 1830s, zoologist Theodor Schwann and botanist Matthias Schleiden proposed the united cell theory.

The unified cell theory states that each living thing is composed of one or even more cells, every cell is the basis of life, and new cells can be created from existing cells.

Therefore, cell produce through the spontaneous generation.

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Which statement about DNA is false? It can be used to identify an individual person. It is found in nearly all the cells of all living things. It can be found in human saliva, hair, and blood. Plants have DNA in three places: the nucleus, chloroplasts, and mitochondria. Humans lack DNA in their brain cells.

Answers

Answer:

Humans lack DNA in their brain cells.

Explanation:

Which amino acid chain will be formed by the codons shown below?
ACU CCA UCG
Messenger
Second base in codon
RNA Codons U
С
A
G
UUU UCU
UAU
UGU U
UUC
Phe
UCC UAC
Tyr
UGC
Cys
U
Ser
UUA
Leu
UCA UAA Stop UGA Stop A
UUG UCG UAG Stop UGG Tep G
CUU CCU CAU CGU
U
His
CUC ССС CAC) CGC
Leu
Pro
Arg
CUA CCA CAA CGA
A
Gin
CUG CCG CAG CGGI G
AUU) ACU
AAU
U
Asn
AGU
SC
AUC
lle ACC
AAC AGC
A
Thr
AUA ACA ААА AGA
AUGStart Me ACG AAG AGG
GUU GCU GAU GGU
U
Asp
GUC GCC GAC GGC
С
Val
Ala
Gly
GUA GCA
GGA A
GUG GCG GAG) GGG
G
c
First base in codon
= 0 < =0 < = conoco
Third base in codon
Lys
Arg
G
GAA Glu
A. Thr-Pro-Phe
B. Thr-Pro-Ser
C. Asn-Pro-Ser
D. Thr-Ser Pro

Answers

Answer:

the answer is b. thr-pro-ser

The amino acid chain which will be formed by the codons "ACU CCA UCG" will be Threonine-Proline-Serine. Thus, the correct option will be B.

What is amino acid chain?

An amino acid can be defined as the fundamental molecule which serves as the building block for protein molecules in the body. There are about twenty different amino acid molecules present inside the body of an organism. A protein molecule consists of one or more chains of amino acid molecules called as polypeptides whose sequence is encoded in a gene.

Different codons are present in the cell which encodes for different amino acids. A codon is a set of three nucleotides which encode amino acid molecules. ACU codon encode for threonine amino acid, CCA encode for Proline amino acid, and UCG encode for Serine amino acid.

Therefore, the correct option will be B.

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identify the sphere wher life first emerged on earth hydrosphere, lithosphere, atmossphere

Answers

Answer:

hydroshere

Explanation:

hydro=water

Answer:

you're answer would be hydrosphere

Explanation:

Life on Earth, emerged in the hydrosphere, at least from the findings and data so far. The reason for that was that the atmosphere and the lithosphere were still in a faze were they were not very hospitable for any living organisms to develop. The hydrosphere, or the water bodies, on the other side, were enabling conditions for life, not perfect or as we have today, but still reasonably good, so the life started developing into the water environment, and after the atmosphere and lithosphere changed over time, it spread on them as well.

hope this answer is correct :)

Which of the following biological macromolecules is correctly paired with one of its functions?

Choose ONE answer:

A. Proteins ----> provide cell structure

B. Carbohydrates ----> store genetic information

C. Nucleic acids ----> digest dead cells

D. Lipids ----> give quick energy to cells​

Answers

A. proteins
they play many critical roles in the body, and are required for cell structure, function, and regulation of body tissues and organs :)xx

Of the given options, proteins is correctly paired with its function, that is, provide cell structure.

What are proteins and their functions?

They are the large and complex molecules, which perform many essential roles in the body. They perform majority of the function in cells and are needed for the structure and function of the cells. Apart from this, they also play an essential role in the regulation of the tissues and organs of the body.

Of the different kinds of proteins found in the body, the structural proteins provide structure and support for the cells. On a bigger scale, they also help the body in movement, for example, actin protein.

Thus, the correct answer is option A.

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What is Aquatic Habitat​

Answers

habitat is physical enviroment in 2hich an animal or plant is usually found.

Answer:

An aquatic habitat is a habitat with water. It includes areas that are permanently covered by water and surrounding areas that are occasionally covered by water. Estuaries, rivers, and marshes are examples of aquatic habitats.

Explanation:

An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.

Good luck. ... Brainliest please

Which characteristic is one of the three main characteristics used to classify igneous rocks?

Answers

Answer: Texture

Explanation:  the rate at which the rock had cooled when molten magma was cooling gives out a clear comparrison of the rocks which is the texture

Answer:

Explanation:

Texture

The images show fossils of a modern bird and two extinct organisms( a Tyrannosaurus rex and archaeopteryx). Based on the structure of the three organisms, it can be concluded that blank . The archaeopteryx and have wings, while dinosaurs have limbs. So, it can be concluded that blank.

Answers

Answer:

Many individuals consider that Archaeopteryx would have been the first bird, however, many paleontologists are against it. The findings of many fossils of Archaeopteryx have revealed that though the creature exhibited wings, the majority of its characteristics were of reptile, like the existence of full teeth set. Apart from this, the wings formation of the creature demonstrated that it was not completely capable of flying.  

No matter what, the presence of wings makes them closely associated with the modern time birds. Thus, it can be concluded that Archaeopteryx could be considered as an intermediate between the reptiles and the birds and is a precursor to the modern-day birds' evolution.  

Name and explain the archetypes illustrated in the myth of Cupid and Psyche.

Answers

Answer:

Underneath is provided the archetypes depicted throughout the Cupid as well as Psyche myths.

Explanation:

The Cupid as well as Psyche myth seems to be an illustration of many other archetypes. Initially, it seems to be using the Tasks as well as Tests particular circumstance archetype something which Psyche should therefore accomplish. Psyche herself would be an instance of both the individual Ingénue and perhaps Maiden. She also seems to be naturally beautiful and then becomes a smart teenage girl. Venus has always been depicted with her impossible demands as that of the evil queen, or Stepmother.

The story brought to mind many characters of situations:

Beauty and BeastThe cuddle of eternal loveThe faith and nature of life are indeed visible in this story.

Such as the above story, Psyche appears to believe that she'll be wanted to send to have been the bride of such a terrifying dragon who conceals from her after week as well. Very much like that novel, she was therefore persuaded by her sisters to deceive himself, who forced herself to inform on him. Cupid waking someone up from her deep sleep is like the conventional Touch of true soul mate administered by innumerable royalty to activate respective princesses. However, when Psyche has always been helped make immortal, the power of prayer overcomes everything so that the two main characters can indeed be formed forever.

in the human nervous system, what is a synapse? A. The difference in ionic charge between the inside and outside of a neuron B. the chemical signal that binds to the next call in a neuron C. A type of neuron that transmits signals from one neuron to the next D. The space between two neurons

Answers

Answer:

D

Explanation:

For more info, try specifically researching about synapse junctions

A synapse is a space between two neurons.

Where is the synapse between two neurons?

The junction between the axon of one neuron and the dendrite of another, through which the two neurons communicate.

Why is there a gap between two neurons?

The gap between two neurons called synapses helps in the quick transmission of impulses from one neuron to another. Other advantages of the synapse are Amplification of current flow.

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Dazzle, Inc. produces beads for jewelry making use. The following information summarizes production operations for June. The journal entry to record June production activities for direct material usage is:Direct materials used $87,000Direct labor used 160,000 Predetermined overhead rate (based on direct labor) 155%Goods transferred to finished goods 432,000Cost of goods sold 444,000Credit sales 810,000a. Debit Accounts Receivable $810,000; credit Cost of Goods Sold $810,000.b. Debit Accounts Receivable $810,000; credit Sales $366,000; credit Finished Goods Inventory $444,000.c. Debit Cost of Goods Sold $444,000; credit Sales $444,000.d. Debit Finished Goods Inventory $444,000; debit Sales $810,000; credit Accounts Receivable $810,000; credit Cost of Goods Sold $444,000.e. Debit Accounts Receivable $810,000; credit Sales $810,000; debit Cost of Goods Sold $444,000; credit Finished Goods Inventory $444,000. Find the total area of the prism. PLEASE HELLLLLLP MEEE please help me out with these questions. Its trigonometry. Find the value of the lettered anglesIn case the pic's not clear;[tex] \cos \alpha = \sin(50 + \alpha ) [/tex] After applying a bandage, you notice the fingers below the injury site are becoming cool to the touch. What might be the reason for this, and how can you remedy the situation An external conflict is a struggle between a character and an outside force. An internal conflict occurs when a character is struggling with his or her feelings. Reread the last half of page 4, which is the right side. Are the children facing an internal or external conflict as they walk to the closet and unlock the door? Explain your answer. ( This question is based on the story All Summer in a Day) Which of the following prohibits consumers from taking cash from manufacturers, suppliers, or their representatives for making recommendations, reviews, or endorsements, unless full disclosure is provided?A. The world of mouth Marketing association's ethics code.B. The fourth principle of IMCC. The American associations of advertising agencies creative 11. John has a life insurance policy that will pay his family $32,000 per year if he dies. If interest rates are at 2.5% when the insurance company has to pay, what is the amount of the lump sum that the insurance company must put into a bank account? Which is the answer ? Item 25The linear function m=457.5b represents the amount m (in dollars) of money that you have after buying b books. Select all of the values that are in the domain of the function.012345678910Item 25The linear function m=457.5b represents the amount m (in dollars) of money that you have after buying b books. Select all of the values that are in the domain of the function.012345678910 A ladder leaning against a wall makes a 35 angle with the ground. The foot of the ladder is 5 meters from the wall. What is the length of ladder? An eraser is in the shape of a triangular prism. Its dimensions are shown in the diagram. What is surface area of theeraser?50 mm40 mm40 mm30 mm3,600 square millimeters4.800 square millimeters5,400 square millimeters6,000 square millimeters What is the population of Nigeria 2020? A swim team must be chosen from 12 candidates. What is the greatest number of different 3-person teams that can be chosen? Based on The Shivering Tree, how would you describe the Trickster figure in Aboriginal mythology? Select the correct answer.According to the Universal Law of Gravitation, every object attracts every other object in the universe. Why cant you feel the force of attraction between you and Mars?A. There is no force of attraction between you and Mars.B. Your mass is too low.C. Mars is a larger planet than Earth.D. Mars is a long distance away. PLEASE HELP MEEEEI need help finding x a b and c Find the area of the triangle. Effective reading involves what four steps? Select one: a. Preparing, reading, capturing key ideas, and reviewing. b. Preparing, absorbing, capturing, reviewing c. Reading, note-taking, summarizing, reviewing d. Reading, capturing key ideas, summarizing, reviewing What is 4sqrt7^3 in exponential form?