dna samples from four different organisms were analyzed using a procedure that separates the dna in each sample by size.What procedure was used to obtain these results?

Answers

Answer 1

Answer:

The correct answer is - Gel electrophoresis.

Explanation:

Gel electrophoresis is a lab technique used to separate distinct samples of mixed DNA, RNA, or proteins on the basis of their size. In gel electrophoresis, the molecules to be move from one another by an electrical field through a gel with small pores in it. DNA molecules are negatively charged so they move towards positive charge wells in the electric field and get separated.


Related Questions

What device is used to measure water forming on the glacial ice sheet?

Answers

Scientists have adopted three general approaches to ice sheet mass balance measurement: comparing outflow and melt to snowfall accumulation (the mass budget method), observing changes in glacier elevation (volume change or geodetic method), and detecting changes in the Earth's gravity field over the ice sheet





Hope this help ❤️

The device that is used to measure water forming on the glacial ice sheet is known as the Airborne Topographic Mapper (ATM).

What do you mean by Glacial Ice sheets?

Glacial ice sheets may be defined as a mass or accumulation of glacial ice of more than 50,000 square kilometers. This sheet significantly contains about 99% of the freshwater on Earth and is sometimes called continental glaciers.

According to the context of this question, an instrument known as the Airborne Topographic Mapper (ATM) considerably collects the elevation of the ice surface along with its thickness. Apart from this, it also measures the formation of ice from water on the glacial ice sheet.

Therefore, the Airborne Topographic Mapper (ATM) is a device that is used to measure water forming on the glacial ice sheet.

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what is the function of the cristae that is found inside the mitochondria

Answers

Answer: cristae greatly increase the surface area of the inner membrane on which the above-mentioned reactions may take place. A widely accepted hypothesis for the function of the cristae is that the high surface area allows an increased capacity for ATP

Explanation:

how much of the sun's energy is Absorbed by earth​

Answers

the answer is C 51 percent

what’s the code for UCU AAA CCU GGG UAA

Answers

The code is DNA your welcome

Over 1 million species of animals have been named and described by biologists. These species arose __________. View Available Hint(s) Over 1 million species of animals have been named and described by biologists. These species arose __________. before the Cambrian explosion through years of evolution as natural selection shaped animal adaptations to Earth's environments from island-bound populations of individuals as a result of evolution from a common fungal ancestor

Answers

Answer:

through years of evolution as natural selection shaped animal adaptations to Earth's environments.

Explanation:

Over the years, biologists have been able to successfully name more than one (1) million animal species across the world. These species arose through years of evolution as natural selection shaped animal adaptations to Earth's environments.

Natural selection can be defined as a biological process in which species of living organisms having certain traits that enable them to adapt to environmental factors such as predators, competition for food, climate change, sex mates, etc., tend to survive and reproduce, as well as passing on their genes to subsequent generations.

Simply stated, natural selection entails the survival of the fittest. Therefore, the species that are able to adapt to the environment will increase in number while the ones who can't adapt will die and go into extinction.

how is the knowledge of prokaryotic and Eukaryotic cells beneficial to you for understanding the living organisms better​

Answers

Explanation:

im pretty sure its They ward off disease-causing organisms by competing for space and nutrients on and inside the body. ... Scientists and doctors can even utilize prokaryotes to help the human body. The two key components of ecosystem stability are resilience and resistanc

1. A one-eyed purple people eater is crossed with a two eyed purple people eater. All of their offspring have two eyes. A. Which trait is dominant? B. If you use the letter E for this gene. What is the genotype of the offspring? C. Are these offspring the F1 or F2 generation? D. If you crossed the offspring with each other? How many of the new offspring would you expect to have two eyes?

Answers

Answer:

The dominant trait is two-eyesThe offspring genotype must be heterozygous EeThis offspring represents the F13/4 or 75% of the F2 generation should have two eyes.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

When a substances like sugar, salt or lemon juice dissolve into a liquid and appears to "disappear", it is no longer present in the solution.
True
False

Answers

Answer:

False.

Explanation:

A solvent is the substance that does the dissolving – it dissolves the solute. In salt solution, water is the solvent. During dissolving, particles of solvent collide with particles of solute. They surround the particles of solute, gradually moving them away until the particles are evenly spread through the solvent.

The molecules are still there.

The second main category of mutations are "gene mutations.
Give the 3 types of gene mutations.

Answers

Answer:

substitutions

deletions

insertions

Answer:

There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.

Explanation:

pls mark me brainlest

ASAP Becky made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties.
Four waves labeled A, B, C, and D are shown. Wave A has the greatest gap between its consecutive peaks and Wave B has the least gap between its consecutive peaks. Wave C has the second greatest gap between consecutive peaks, followed by Wave D.

Which wave best represents ultraviolet rays?

Wave A
Wave B
Wave C
Wave D

Answers

The best wave represents ultraviolet rays is Wave B.

Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .

How harmful are UV rays?

Exposure to UV rays can cause early ageing of the skin and signs of sun harm such as creases , leathery skin, liver bumps, actinic keratosis, and solar elastosis.

UV beams can also generate eye pains. They can force the cornea to become inflamed or ignited.\

Thus, the option "B" is correct,  Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .

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Answer:

b

Explanation:

As the season changes from fall to winter, you can observe many warm-blooded animals increasing in body size. This increase in body fat is preparing animals for —

Question 7 options:

migration, where large animals tend to survive better.


reproduction, where large bodies attract more mates.


raising infants, where a large amount of energy is needed.


hibernation, where the body fat provides a food source.

Answers

Answer:

hibernation

Explanation:

took test on k12

Meiosis produces four nuclei that have different chromosome numbers
from the parent cell.
True or False

Help please

Answers

Answer:

I would say true

Explanation:

they do produce 4 different chromosomes

Answer:

true

Explanation:

the are 23 chromosomes in the daughter cell and 46 in the parent cell

Answer please I will give points

Answers

Answer:

A

//this msg was written as I needed more words//

Answer:

The answer is a

Explanation:

The answer is a because it ball a can't rollout a flat surface unless gravity pulls on ball A

Pesticides sprayed on the plants in fields become
drip onto the soil.
when they settle and
O A. ammonia
O B. pollutants
C. nutrients
D. acid rain

Answers

Answer:

pollutants

Explanation:

have a nice day :)

Answer:

pollutants

Explanation:

Photosynthesis
Leaves helps to make
for a plant. They contain a
green substance called chlorophyll The leaves take in a gas called
The roots take in
and other substances from the
ground
The
changes the water and carbon dioxide into the
food that the plant needs. This food is a kind of sugar called
This whole process of making food is called
While this is happening the leaves give off a gas called
Word's to choose from: oxygen, carbon dioxide, photosynthesis,
water, food, chlorophyll, glucose
Complete the word equation for photosynthesis
sunlight

Answers

Answer:

1. Food

2. Carbon Dioxide

3. Water

4. Chlorophyll

5. Glucose

6. Photosynthesis

7. Oxygen

How would this food web be affected by the extinction of the Osprey?

Answers

Answer:

The fish would grow in the population, because osprey mainly eat fish.

Because of the fish growth, the ocean, pond, or whatever, makes the water have less oxygen. The fish eat small fish, crustaceans, worms and almost anything that is not poisonous to them. These populations will decrease.

Because there are no Ospreys, the raccoons will get hungry too, as they sometimes eat Osprey eggs.


Suggest two reasons why a person aged 16–49 years might not be using contraception.

Answers

Answer and Explanation:

The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.

#teamtrees #PAW (Plant And Water)

Part D The result of the following cross indicates that the genotype of the female parent is _____. A cross of a female parent with a wild type head top and a male parent with a flat head top (P generation). The F1 generation all have a wild type of the head top. The result of the following cross indicates that the genotype of the female parent is _____. A cross of a female parent with a wild type head top and a male parent with a flat head top (P generation). The F1 generation all have a wild type of the head top. R rr Rr r RR

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

What might happen to an enzymes activity if the gene encoding its production was altered by a mutation?

Answers

Answer:

The enzyme's activity will be altered

Explanation:

Genes are unit of hereditary that carries genetic information needed for the survival of the cell and organism at large. Genes are expressed via transcription and translation processes to produce a protein, which is responsible for the physical traits we can see (phenotype).

Since ENZYMES that catalyze biochemical reactions in living cells are proteinous in nature i.e. are made up of proteins, this means that they are formed from the expression of genes. Hence, if the gene encoding the production of an enzyme is altered or changed due to mutation, then the activity of the resulting enzyme will also be altered (most times non-functional).

Oxygen is
a product of photosynthesis and cellular respiration.

a reactant of photosynthesis and cellular respiration.

a product of photosynthesis and a reactant of cellular respiration.

a reactant of photosynthesis and a product of cellular respiration.

Answers

Answer:

a product of photosynthesis and a reactant of cellular respiration

the united states , canada , japan , and england are all examples of ?
1. developed nations
2. developing nations
3. low-income nations
4. middle-income nations
5. transitional nations

Answers

1. developed nations

Which of the following can
conserve energy?
A. crop rotation
B. intercropping
C. drip irrigation
D. recycling newspaper

Answers

Answer:

jbbbbbbbbbbb

Explanation:

jjjjjjjjjjjjj

Answer:

B i think

Explanation:

All of Earth's systems are
A. independent
B. interconnected
C. separated
D. unrelated

Answers

the answer is B. interconnected

39
What did Darwin's analogy of the tree of life suggest? *
(2 Points)

Answers

Answer:

all species were derived from ancestral group

C is the answer sorry is wrong

Which describes the majority of a
human's cells within their body?
A selectwety permeable
B. conductors
C sliding doors
D, permeable

Answers

A it’s selectively permeable

Please help! ASAP this is due today and I really need help.

Which of the following shows the evolutionary relationships between organisms? (5 points)

a
Branching tree diagram

b
Binomial nomenclature

c
Three-domain classification

d
Taxonomic key

Answers

Answer:

it's A)Branching tree diagram

Explanation:

i did the 05.06 Module 05 Exam and got it correct, i hope i was able to help :)

in which way does dentition of sheep differ from that of humans ?​

Answers

sheep has diastema while humans have complete set of teeth

Answer: Sheep are born without teeth, but most have eight milk teeth by the time they are two months old. As sheep get older they lose their milk teeth, which are replaced by permanent teeth — just like humans. For example, a sheep that is about 16–18 months, with two permanent incisors is called a 'two-tooth'.

Which type of birds do you think survive the drought finches big breaks or finches with small beaks?

Answers

Answer:

Since large and hard seeds survived the drought, that means that finches with large beaks survived the drought. Finches with small beaks would not be able to eat the large seeds and would not survive.

small beak finches.

What type of scientists uses a dichotomous key?

Answers

Answer: biologists are a type of scientist that use dichotomous.

The Type of scientists that uses dichotomous key is : Biologist

A lot of scientists make use of the Dichotomous key for identifying unknown biological organisms like Biologists. A dichotomous key consists of a set of choices, with each choice consisting of two statements, these statements makes it possible to name an unknown biological organism.

A dichotomous key is a simply method used for the identification of organisms ( groups of unknown organisms are repeatedly divided into two groups to get more information about the organism )

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What type of wave is light? And does it need a medium to travel through?

Answers

Answer: light is a eletromagnetic wave, no it does not need a medium

Explanation:

have a good day lad :)

Answer:

light arent a specific "type" of wave, but it refers to any wave/wavelength in the electromagnetic spectrum

and yes, it needs a medium, just like sound waves

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first Russian object to go to space The degree or intensity of heat present and how we measure heat is called: PLEASE HELP TIMED two functions are combined resulting in the function j(x)= 1.5x^2 + 4x-3 . Which operations apply to the specified functions could result in j(x)? select three options. NO BOTS OR SPAM PLEASE The Speaker of the House isIn line to the presidency.4th3rd2ndnot someone pls help w this! The base of a cereal box has an area of 27.625 in the height is 10 inches what is the volume of the cereal box which of the following statements best describes the religious beliefs of the Maya? A. The Maya believed that one powerful god created and controlled the world. B. The Maya did not practice a religion. C. The Maya believed gods existed, but did not pay attention to them in daily life. D. The Maya thought that many gods controlled all aspects of their lives. Please select the best answer from the choices provided A B C DIf you had to chose ONE anime character to be with, who would it be? What factors influence the way a society defines its universe of obligation? Lucas works for a salary of $2,396 per month. His deductions include $360 of federal income tax, $148 for Social Security, $35 for Medicare, and a $95 insurance premium. What is his monthly net pay? Convert the following number to percent. 11/3. If needed, round to nearest hundredth. The Iron Curtain is a metaphor that symbolized thatBerlin was divided into communist and non-communist zones by the Berlin WallCommunism led to better economic growth than a free market capitalist systemEnsuring that Communism was contained to only the Soviet UnionThe division of Europe into Western Capitalist and Eastern Communist zones Which of the following is most likely to dissolve in NH3? A) CO2 B) CH4 C) H2S D) BH3 HELPPP PLEASE 10th GEOMETRY NO LINKS only 4 questions Which is an example of evolution?A) The formation of a tumor on a dog's ear.B) A cat with glowing purple eyes, a trait never seen before.C) A rare copper snake giving birth to 10 copper colored snakes.D) A cow with 4 ears giving birth to 3 calves with normal 2 ears.E) A growth that looks like a 6th finger on a monkey. What is the stream of consciousness? What is the value of L-12]?-13-12o 133 Science Question 1: Please Answer! Compramos libros enA. la libreraB. el correoC. la bibliotecaD. la iglesia Currently, Chernobyl serves as which of the following: A) A tourist site B) An amusement park C) A cemetery D) A new industrial complex