Which statement is true about chromosomes?

Which Statement Is True About Chromosomes?

Answers

Answer 1

Answer:

4.they are made up of DNA wrapped around proteins


Related Questions

. There are different methods of sowing the seeds. Which one of the methods given below is not the methods of sowing seeds used by the farmer?

Answers

Answer:

A) Broadcasting B) Seed-drill

Explanation:

Options of sowing seeds are given below.

A) Broadcasting B) Seed-drill C) Transplanting D) Scattering E) None of these

Farmers used two methods for sowing of seeds such as broadcasting and seed drilling. Broadcasting is a method of seed sowing in which seeds are scattered in the field by hands or machines while seed drill is another method of sowing in which a device or machine is used which bury the seed at certain depth and at proper position in the field. In seed drilling method, seeds are sowing in lines while in broadcast, seeds are sown in every part of the field.

Why can the use of fertilizers, pesticides, and industrial chemicals unintentionally
harm a community's water supply?

Answers

Answer:

Run off

Explanation:

The top soil can produce runoff if it rains heavily and travel with the water. The pesticides in the water are harmful to our body when consuming it. The pesticides are in the topsoil, therefor when the soil runs into the water system it is now contaminated with pesticides.

During a discussion about antimicrobial agents, the instructor explains to the nursing students that there are two major methods used to classify antimicrobial drugs. What are those two major methods

Answers

Answer:

The correct answer is - Susceptible organism and mechanism of action

Explanation:

1. susceptibility is a term utilized when microorganisms, for example, microscopic organisms and fungi can't develop within the sight of at least one antimicrobial medications. susceptibility testing is performed on microscopic organisms or parasites causing a person's infection after they have been recovered in a culture of the specimen .

A bacterial strain is supposed to be helpless to a given anti-microbial when it is restrained in vitro by a concentration of this medication that is related with a high probability of therapeutic achievement.

2. According to their primary actions on microbial cells, antimicrobial antibiotics can be divided into four categories: 1. Inhibitors of the biosynthesis of the bacterial cell wall 2. Inhibitors of the bacterial protein synthesis 3. Inhibitors of the nucleic acid metabolism 4. Alteration of Cell Membranes.

What are the repeating subunits that make up a nucleic acid?

Choose ONE answer:

A. Nucleotides

B. Monosaccharides

C. Amino acids

D. Glycerol and fatty acid tails​

Answers

A. Nucleotides

Monosaccharides make up a carbohydrate.
Amino acids make up protein.
Glycerol and fatty acid tails make up lipids.

A. Nucleotides

Monosaccharides make up a carbohydrate.

Amino acids make up protein.

Glycerol and fatty acid tails make up lipids.

You are at a conference for a fellow scientist who is giving a lecture in a field you
are both researching: human evolution and ancestry. In his lecture, he compares
many of the behaviors of humans and Chimpanzees, and compares the
behaviors of humans and Orangutans. He concludes that we are more closely
related to Orangutans than Chimpanzees. Is he correct?

Answers

Answer:

incorrect

Explanation:

This is an incorrect statement as orangutans are the most distant relatives of humans among the Great apes and chimpanzees are the closest.

What is the evolutionary relationship?

The link drawn between different species of organisms considering their evolutionary history is the evolutionary relationship between these species. Genome sequencing is a method to study evolutionary relationship between the organisms of different species.

The humans, orangutans, gorillas and chimpanzees are grouped together in a family called as as the Hominidae. The Genome sequencing of humans, chimpanzees and orangutans revealed that humans and orangutans share about 97% of their DNA. This is much less than humans and chimpanzees which share 99% of their DNA.

Therefore, the statement that humans are more closely related to orangutans than chimpanzees is an incorrect statement.

Read more about evolution, here

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Which of the following pairs of organisms is most closely related?
A. Cat and amoeba
B. Kangaroo and salmon
C. Lizard and sponge
D. Cat and kangaroo

Answers

Answer:

D

Explanation:

They are both mammals.

Which of these must exist for natural selection to cause change ?

Answers

Answer:

The answer is A.

Explanation:

You are relaxing, having a snack and watching TV, when suddenly the entire house begins to shake violently. The activity of your ________ quickly decreases, while that of your ________ increases. autonomic nervous system; somatic nervous system parasympathetic division; sympathetic division sympathetic division; somatic nervous system sympathetic division; parasympathetic division somatic nervous system; autonomic nervous system

Answers

Answer:

parasympathetic division; sympathetic division

The results of an experiment are considered to be reliable if.

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Answer:

If they have been tested multiple times (at my school we learned 3 times) and if they can be replicated by others.

Explanation:

Which of the following is correct about the polyadenylation mechanism?

Answers

Answer:

a long chain of adenine nucleotides is added to the 3' end of mRNA during termination of transcription

Explanation:

01:53:26 The main factors that determine the amount of runoff in an area include the shape of the land, how people use the land, the type of soil, and: a. amount of soil and vegetation b. amount of rain and vegetation c. amount of rain and amount of soil d. amount of rain and rock formations

Answers

Answer:

a

Explanation:

since runoff can be caused by little rainfall but in abundance of vegetation then it may decrease since they stop or slow down it's flow but runoff can not be affected by rocks since the velocity may even wear it

Answer:

The answer is a

Explanation:

i took the test its not that hard but its ok <3

Cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will be inhibited from doing all of the following EXCEPT:________.
a) extend pseudopodia
b) move vesicles within a cell
c) contract muscle fibers
d) divide in two

Answers

B) move vesicles within a cell

Cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will be inhibited from doing all of the following except move vesicles within a cell. Hence option b is correct.

What is actin polymerization?

Actin polymerization  is defined as a monomers associate with and disassociate from the ends of actin filaments in this reversible process. Actin filament polymerization typically takes place over three phases: a steady state phase, an elongation phase, and a nucleation phase. Actin filament assembly involves the phases of nucleation, elongation, and steady state.

A cell-permeable fungus toxin called cytochalasin D attaches to the barbed end of actin filaments and prevents both subunit interaction and separation. About 20 known mold-derived substances collectively known as cytochalasins impact actin stress fibers and cause fast actin depolymerization.

Thus, cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will be inhibited from doing all of the following except move vesicles within a cell. Hence option b is correct.

To learn more about actin polymerization, refer to the link below:

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Which is a consequence of global warming?

Answers

Some consequences of global warming would be higher wildlife extinction rates ,more acidic oceans ,and higher death rates .

Answer: Rising sea levels

Explanation: Due to the increase in greenhouse gases like CO2 and Nitrogen there is a global increase in average temperatures meaning that glaciers will melt and cause an increase in sea levels

1. evaporation process by which liquid water changes into a gas
2. infiltration process by which solid water (ice, snow) changes directly into a gas
3. precipitation process by which precipitation soaks into the ground
4. sublimation release of water vapor into the air by plants
5. transpiration the release of water from the atmosphere

Answers

Answer:

1. Evaporation process by which liquid water changes into a gas.

2. Sublimation process by which solid water (ice, snow) changes directly into a gas.

3. Infiltration process by which precipitation soaks into the ground.

4. Transpiration release of water vapor into the air by plants.

5. Precipitation the release of water from the atmosphere.

Explanation:

Hope it helps.

Several centers (and their associated motor tracts) in the cerebrum, diencephalon, and brainstem, which may issue somatic motor commands as a result of processing performed at a subconscious level, were long known as the ________, but is actually now considered inaccurate and misleading.

Answers

Answer:

The correct answer is "reticular formation".

Explanation:

The missing options of this question are:

A) medial lemniscus

B) pyramidal system

C) anterolateral system

D) reticular formation

E) extrapyramidal system

The correct answer is option D) "reticular formation".

The term "reticular formation" was coined to mention a set of interconnected nuclei located along the brainstem, including the cerebrum, diencephalon, and the brainstem itself. Nowadays this term is considered inaccurate and misleading, since it was never well defined and some authors may include some structures that other author do not consider as part of the "reticular formation".

Calcium hydroxide:_______.
a. cannot be placed under direct composite resins because it will inhibit polymerization.
b. stimulates the production of reparative dentin.
c. functions as a thick base to support extensive restorations.
d. consists of a resin in an organic solvent.

Answers

Hi there! Hopefully this helps!

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The answer to your question is B.

"Calcium hydroxide stimulates the production of reparative dentin."

If the amount of daylight increases plant growth during the summer

Answers

Answer:

then, the amount of daylight decreases plant growth in the winter.

Explanation:

Well if plant growth is increased during summer due to the amount of daylight then it will be reduced or decreased during winter because of reduced daylight.

Peter and Kim both earn the same amount,£18000p.a.Peter gets a pay rise of 4% in January and then a pay rise of 5% on his new salary in July.Kim gets 9% in July Peter says After July we will both be earning the same again.Is he correct? Explain your answer.​
sorry guys its maths

Answers

Yes and no, if he gets another pay rise in July he’ll make more money that her. But if he doesn’t get a pay rise they’ll both have 9%

DNA sequence into RNA: AATGCATATGCA

Answers

Answer: UUACGUAUACGU

Explanation:

In DNA to RNA Adenine(A) binds with Uracil(U), Thymine(T) binds to Adenine(A), Guanine(G) binds to Cytosine(C), Cytosine(C) binds to Guanine(G).

Hope it helps <3

Which statement correctly compares the pH of water to that of other substances?
he pH of water increases as its temperature increases, while other substances have a stable pH.
The pH of water is neutral; it is higher than the pH of acids and lower than the pH of bases.
Water contains more hydrogen ions than most other substances, giving it a higher pH.
Water is neutral and has a pH of 0; acids have a pH greater than 0, and bases have a pH less than 0.

Answers

Answer:
The pH of water is neutral: it is higher than the pH of acids and lower than the pH of bases.

Explanation:
Pure water has a pH of 7 which is right on the center of the pH scale which ranges from 0 to 14. This is why it sometimes acts as a reference point for acids and bases alike. Hope this helps. :)

Question 5 of 10
A whale is able to move its fins in the ocean because of energy it obtains
directly from
O A. wind
O B. food
O C. the Sun
D. ocean currents

Answers

The answer is B. Food

The energy taken in by the whale through the food it consumes enables a whale to move it's fine in the ocean.

What is most likely to happen to a population of mice that becomes isolated on an island?
Many different species will form as they evolve and fill different niches on the island.
The population of mice will adapt to life on the island but will still be able to breed with the mainland population.
Many different species that are capable of breeding with each other will form.
The population of mice will evolve into a new species of mouse that is adapted to all the different niches that are found on the island.

Answers

The most likely thing that will happen to a population of mice that becomes isolated on an island is Many different species will form as they evolve and fill different niches on the island.

What is population?

Population refers to group of organisms occupying a specific geographical lol cation and interacting with their environment at a particular time.

Therefore, The most likely thing that will happen to a population of mice that becomes isolated on an island is Many different species will form as they evolve and fill different niches on the island.

Learn more about population below.

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Answer: D.)  The most likely thing that will happen to a population of mice that becomes isolated on an island is Many different species will form as they evolve and fill different niches on the island.

Explanation: got 100 on the test

If DNA replicated conservatively instead of semi conservatively, what would the banding pattern look like in a tube containing heavy nitrogen DNA (15N) grown in regular, or light, nitrogen (14N) for 1 generation? A. There would be one band of heavy DNA and one band of light DNA. B. There would be one band of intermediate DNA, and one band of light DNA. C. There would be one band of heavy DNA and one band on intermediate DNA. D. There would be one band of intermediate weight DNA.

Answers

Answer:

A. There would be one band of heavy DNA and one band of light DNA.

Explanation:

First, we must exclude that a 15N DNA is related to a heavy nitrogen, while a 14N DNA is related to a light nitrogen.

After that, it is important to understand what conservative DNA replication would be. This type of replication implies that the strands of the parental DNA would not be separated to form the daughter strands. Thus, the replication occurs with the DNA strands together, the daughter strands of newly formed DNA are also formed together, in this case. Thus, the parental 15N DNA would form another 15N DNA molecule, the same goes for the 14N molecule. With that we can say that the answer to your question would be "there would be a heavy DNA band and a light DNA band."

Is water biodegradable or non - biodegradable?

Answers

Answer:

Biodegradable

Explanation:

Biodegradable for sure

Observe 5 different forms of life in your garden, orchard, living beings found with their characteristics and give an explanation of these forms.

Answers

Answer:

Explanation:

After going to my garden and observing carefully I have come to the conclusion that there are many forms of life.

The most common way of life is plants: which are mostly green, give us oxygen and some give us fruit or food.

Other forms of life that I observed were:

Birds: vertebrate animals that live on the fruits of trees, sing in the morning and have plumageThe worms: invertebrate animals that serve as compost for the earth. Ants, insects that work in an orderly way and that live in colonies under the ground.Flies, flying insects that help decompose animals.

In some parts of Africa, the frequency of heterozygosity for the sickle cell anemia allele is unusually high, presumably because this reduces the frequency of malaria. Such a relationship is related to which of the following?
a) Mendel's law of independent assortment
b) Mendel's law of segregation
c) Darwin's explanation of natural selection
d) Darwin's observations of competition
e) The malarial parasite changing the allele

Answers

Answer:

The correct option is C.

Explanation:

According to Darwin's Law of Natural Selection, a gene that benefits the organism and helps it produce healty offspring so that it can survive is supported by natural selection and will receive a positive feedback over.

The fact that the heterozygosity for sickle cell anemia helps with the survivability of malaria, which is a deadly disease, suggests that the heterozygosity is favored by the law of natural selection.

I hope this answer helps.

What happens if the large intestine is NOT working correctly? What happens if the Small Intestine is NOT working properly?

Answers

People with short bowel syndrome cannot absorb enough water, vitamins, and other nutrients from food to sustain life. Diarrhea is the main symptom of short bowel syndrome and can lead to dehydration, malnutrition, and weight loss. These problems can be severe and can cause death without proper treatment.Mar

a cell "x" contain a cell wall large central vacuole and a nucleus at the periphery . cell"x"is __________ options 1) plants cell 2) animal cell 3) bacterial cell 4) prokaryotic cell​

Answers

Answer:

plant cell

Explanation:

Plant cells have a cell wall to maintain cell shape. They also have a large central vacuole for water storage and a nucleus at the periphery.

Hope that helps.

Which statement about glycolysis is false? ATP is required. Three of the 10 steps of glycolysis yield energy. Glycolysis leads to the formation of pyruvate. Oxygen is required. Glycolysis occurs outside of the mitochondria.

Answers

Answer:

The answer is oxygen is required

A marine biologist discovers a new marine animal that has a coelom, but it does not develop from the mesodermal tissues. Under which category should she classify this animal? A. pseudocoelomate B. acoelomate C. coelomate

Answers

Answer:

A. pseudocoelomate

Explanation:

The body cavity of these animals is filled with fluids. Internal organs are covered by the fluid-filled space. The body cavity serves as the hydrostatic skeleton and has other functions such as digestion of food and waste removal.

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Adam and three friends go on holiday together for a week.The costs of the holiday will be shared equally between the 4 friends.These are: 1460 for 4 return plane tickets 720 for the accommodation 180 for the car hire for a weekHow much does Adam have to pay for his share of the costs? find the coordinates of the point satisfying lying on x axis at a distance of 5 units to the right of x axis lying on y axis at a distance of 3 units below the orgin Read the stanza from "Night." O night, you take the petals of the roses in your hand, but leave the stark core of the rose to perish on the branch. What does the word stark mean in this stanza? strong simple bare soft In square units, what is the area of the sector that is not shaded?