what do you mean by the chromatin fibres ?​

Answers

Answer 1

Hey buddy I am here to help!

Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.

Hope its helps!

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Answer 2
They form chromosomes

Related Questions

Question 3

The difference between pectin an amylopectin is that


1. Pectin has more branching


2. Amylopectin has a - 1,4 glycosidic bonds and pectins have a - 1,6 glycosidic bonds


3. Amylopectin has more branching


4. Amylopectin has a - 1,4 glycosidic bonds and pectins have ß - 1,4 glycosidic bonds

Answers

The answer is number
4

The difference between pectin and amylopectin is that amylopectin has more branching than pectin.

What is pectin?"Pectin consists of a complex set of polysaccharides." This has a linear chains of α-(1–4)-linked D-galacturonic acid.This are mainly found in plants.This helps in binding cells together.What is amylopectin?"Amylopectin is a highly branched macromolecule composed mostly of α-(1→4)-d-glucopyranose units, with α-(1→6)-linkages at intervals of approximately 20 units."These are water insoluble.

Hence, the correct option is 3. Amylopectin has more branching.

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The volume of air in the lungs is controlled by the​

Answers

The diaphragm,

During inhalation, the diaphragm is contracted which increases the volume of the lung cavity. During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity

strenuous exercise leads to muscle cramp give reason​

Answers

Explanation:

Cramps can have causes that aren't due to underlying disease. Examples include dehydration, strenuous exercise or lack of muscle use.

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Answer: Lactic acid

Explanation: The acid is caused by anaerobic respiration, which you do when you do not get enough oxygen

Which is an endocrine function?

Answers

Answer:

Explanation:

The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems. In humans, the major endocrine glands are the thyroid gland and the adrenal glands. The study of the endocrine system and its disorders is known as endocrinology.

Describe the roles performed by the cell wall and cell membrane in a plant cell

Answers

Answer:

Cell membrane controls the substances that go in and out of the cell.

Cell wall keeps cell tugid and strong.

a scientist begins working by trying to explain a natural occurence that is...
1. consistent
2. observable
3. In a lab
4. undetectable​

Answers

Answer:

Observable

Explanation:

An observable phenomenon leads to an hypothesis.

Answer:

2. observable

Explanation:

The scientific method relies on a scientist being able to study an occurrence and understand it. So, all the occurrences must be observable; otherwise, they cannot be studied. If the patterns are observable then one can follow the scientific method and experiment with the different variables. All science depends on the observable world and the people that study it.

Write about the structure and the purpose of Fat or Lipids.

Answers

Answer:

A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.

what you mean by accessory pigments? ​

Answers

Accessory pigments are compounds that absorbs light. They are found in photosynthetic organisms.

Does a computer have internal organization

Answers

Answer:

Yes, the operating system is the computers internal organization

Explanation:

This is the question I need help with.

Answers

Answer:

rodents

Explanation:

because they are closely related and have a more recent common ancestor. Hope the picture helps u to understand:)

Answer: D or Rodents

Explanation: Rodents have the same four limbs, Eukaryotic, have Vertabrae, and same Amniotic egg and hair/ fur, so they are the most closely related in this graph

Explain the phenomenon you observe in the diagram. Provide as many details as possible to your explanation

Answers

Answer:

reflection

Explanation:

this is what is seen on the mirror

3characteristics of good respiratory surface​

Answers

thin walls.

a moist inner surface.

a huge combined surface area.

What environmental factor was important for the
Cambrian "explosion of life”?

Answers

Answer: the earth was just starting to develop really well and well enough for life.

Explanation: atmospheric oxygen and oceanic calcium levels went up, but nobody needs to know that much facts about how earth developed, But the group called phyla started growing because of these conditions

Answer:

Explanation:

Tôi nghĩ rằng nếu quan trọng thời điểm đó phải là hình thành tầng ozon tạo tiền đề thiết lập hệ sinh thái

Which structures are found only in plant cells, not in animal cells?
- [ ] A and B
- [ ] B and C
- [ ] C and D
- [ ] D and A

Answers

Answer:

answer is b and c

Explanation:

they have different cells, and chloroplast is only in plant cell

The table lists some organelles and functions. Only one pair is correctly matched.

Functions of Organelles
Organelle Function
Nucleus Directs cell activity
Endoplasmic reticulum Breaks down sugar molecules to supply energy
Golgi apparatus Supports and protects organelles in the cell
Lysosome Produces proteins for the cell

Which organelle in the table is correctly matched with its function?

Answers

Answer:

I believe the correct answer is nucleus.

Neither endosomes nor lysosomes are found in the nucleus. The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce.

What is the cell controlling power of nucleus?

The nucleus serves as the primary remote control for the cell. It acts as the cell's brain by giving instructions on what to do, how to grow, and when to reproduce. The nucleus of the cell contains the cell's genes.

The nucleus is the area of the cell that manages all of its operations. The nucleus is a membrane-bound, spherical organelle.

Its membrane, known as the nuclear membrane, has nuclear pores that control how materials are transported into and out of the cell. The nucleus' ability to store DNA is its primary role.

Therefore, Nucleus organelle in the table is correctly matched with its function.

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Which is an important source of carbon monoxide emissions that contributes to the greenhouse effect?


landfills


wetlands


vehicles


greenhouses

Answers

It is vehicle.
Explanation- I don’t know lol
It’s the vehicles because of the gas in the air and when the car is moving smoke and then it can cause pollution to the air and it would be bad

What is the role of RNA polymerase?

Answers

Answer:

RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.

Explanation:

PLEASE BRAINLIEST or no speedrun videos (⩺_⩹)

When people receive organ transplants, they often need to take medications that decrease immune responses because * 2 points D. transplanted organs produce their own antibiotics B. antigens present in these organs attack antibodies already present in the blood C. hormones present in replacement organs prevent the synthesis of antibiotics A. transplanted organs contain antigens that can trigger white blood cell activity

Answers

Answer:

The correct answer is A. transplanted organs contain antigens that can trigger white blood cell activity

Explanation:

The body's immune system is designed to seek out and destroy any foreign object it finds in the body, such as a cold or flu virus - or a transplanted organ. The process of destruction of the transplanted organ is called rejection.Immunosuppressive drugs will be provided to prevent your immune system from damaging the transplanted organ. Organ transplants require the use of immunosuppressive drugs capable of controlling the immune response triggered by the presence of antigens foreign to the body itself. The group of immunosuppressants is made up of drugs indicated both in the prevention of rejection of the transplanted organ and in its reversal.

A principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom
and the rocks become progressively younger toward the top

Choose from these answer:
(Superposition)
(Uniformity)
(Fault)
(Overfolding)

Answers

super position

Explanation:

because because it is arranged in a sequence

In chickens, FF produces extreme frizzle (very brittle and curly feathers), Ff has mild frizzle and ff has normal feathers. An extreme frizzle hen is mated with a normal rooster. What will the chickens look like? What will their genotype be?

Cross (parents):

Offspring will look like:

All of the genotypes will be

Answers

Answer:

if pure FF and pure ff marry, phenotypic ratio is all Ff or half-half

mild-ruffled feathers for all the chicks

Explanation:

makes sense

18. Which of the following is not an environmental consequence of aquaculture? (1 point)
It releases wastewater into natural environments.
It breeds diseases that devastate fish populations.
It introduces invasive species to natural ecosystems.
It causes wild fish populations to become too large.
It encourages overfishing of wild fish used to feed farmed fish.

Answers

It introduces invasive species to natural ecosystems

Which of the following is an example of a point source of population?
A. deforestation leads to soil erosion, which empties into a pond.
B. animal manure washed from a farm enters a stream.
C. an industrial waste pipe discharges water into lake.
D. storm water from street surfaces runs into river.

Answers

Ok I’m not 109 percent sure but I believe it’s A or C I’m not sure tho

By the end of this lab, you will see how some materials diffuse through a semipermeable membrane but others do not. The materials that you examine will differ in molecule size . Some will be larger and some smaller . Formulate an investigative question for this situation .

Answers

Answer:

Due to their sizes.

Explanation:

Some materials diffuse through a semipermeable membrane because of their small size which can pass through small pores present in the semipermeable membrane of the cell while on the other hand, some molecules can't diffuse through semipermeable membrane of the cell due to its large size. Glucose, oxygen and sodium are the examples which are smaller in size and can diffuse through semipermeable membrane whereas fats, carbohydrates and proteins are big in size so it can diffuse through semipermeable membrane of the cell.

Answer:

What is the effect of molecule size on a molecule's ability to diffuse across a semipermeable membrane?

Explanation:

here’s the proof… you’re welcome

Some species form social groups only with members of the same gender. For example, elephants form groups with only females and their offspring. Once the male offspring reach a certain age, they leave the group and become solitary.

Which is a benefit of this type of social group structure?


Females do not have to compete for a mate.
Male offspring can belong to more than one social group.
Adult males can mate with females in several different social groups.
Females are the only ones responsible for taking care of the offspring.

Answers

Answer:

Females do not have to compete for a mate.

Explanation:

Due to grouping of animals, females do not have to compete for a mate because each group has its own male. They have a male with which she mate and produce fertile offspring and has a complete family so we can say that the benefit of such type of social group structures is that females do not have to compete for a mate in the population as compared to other animals.

Answer:

A. female's do not have to compete for mates.

Explanation:

Which conclusion is best supported by his observations?

Answers

Answer:  

The answer would be d finch 4 is adapted to eat small insects that live in tiny holes.

Explanation:

20.
Wheat can vary in color from white to dark red depending on how much red pigment is present. Which genotype will produce the darkest wheat?
AaBBCC
aabbcc
AaBbCc
AABBcc

Answers

Answer:

AaBBCC

Explanation:

I think this is it. Hope it helps

The difference between the bats in the United States with the Pd fungus and bats found in Europe and China with the Pd fungus was that A. the bats in the United States were immune to the fungus. B. the bats in the United States had a more deadly form of the fungus. C. the bats in Europe and China were dying at a faster rate. D. the bats in Europe and China were healthy.

Answers

Answer:

The correct answer is - D. the bats in Europe and China were healthy.

Explanation:

The white-nose disease of bats is caused by the Pseudogymnoascus destructans or Pd fungus that found in cold mines and caves of the bat. It is a fatal disease that leads to the destruction of the bat population in the United States, in north Calorina the population was dropped up to 99 percent. The bats found in Europe and China with the Pd fungus were healthy and do not cause any fatal disease in the population.

what is one way the gas giants differ from the terrestrial planets

Answers

Question

what is one way the gas giants differ from the terrestrial planets?

ANSWER

Planets that are largely comprised of rock, such as rocky or terrestrial planets, are not like gas giants. Unlike rocky planets, gas giants lack a clearly defined surface there is no obvious line separating the atmosphere from the surface. The atmospheres of the gas giants are primarily hydrogen and helium.

--------------------------hope this helps...have a great day!!

If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to
denature (become inactive/ stop working)
True
False

Answers

Answer:

very true

Explanation:

they dont like change:)

Enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies.

If the PH or the temperate where the enzyme is located changes, the enzyme is very likely to denature is a true statement.

What are enzymes?

The enzymes show the best activity at optimum temperature and pH. When there is a change in the temperature, the structure of the enzyme is changed.Any change in the temperature or pH will result in the breaking of the peptides or disulfide bonds. This will disturb the tertiary structure of the enzyme. At the lower temperature, the enzymes get deactivated while, at a higher temperature, it gets denatured.

Thus, we can conclude that the correct option is True.

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PLEASE HELP!!!
24) is it possible to know the genotypes of the three children in generation 111?
should their shapes be shaded? explain your answer to both questions.

Answers

Answer:

The genotype of all children in generation III is Hh. as H comes from dad and h comes from the mother for every case.

yes, their figures should be shaded.

reason :-

The dominant allele Fort this disease is shown by H whereas the recessive trait shown by h.

each offspring in generation III has the genotype Hh

and the presence of one dominant allele is enough to cause the disease.

all children in generation 3 suffer from the disease and so their figures should be shaded

I am sorry I just need points I am sorry
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