What is the role of chromosomes in the cell nucleus?
Explain in 5 - 10 sentences

Answers

Answer 1

Answer:

Chromosomes are tightly packed DNA and proteins. The DNA and proteins take on a tightly coiled structure within the chromosome. The chromosomes are then kept inside the nucleus. Their role is to carry basic genetic material. This provides the cell with genetic information that's used to carry out different cellular functions. These functions include survival, growth, and the ability to reproduce.


Related Questions

The main characteristic of the architecture of all plant-pollinator networks on Earth is ________.

Answers

Answer:

The main characteristic of plant-pollination networks is their nested designs.

the three steps that are required for dna replication are

Answers

Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

The three steps that are required for DNA  replication are initiation, elongation and termination.

What is DNA replication ?

The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.

It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.

An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.

Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.  

It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.

Termination occurs in the last step, when the parent molecule has been completely replicated.

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What is Cost ?
[tex] \\ \\ [/tex]

Answers

Answer:

[tex] \: [/tex]

Cost : The expenditure incurred by a producer on the factor as well as non-factor inputs for a given amount of output of a commodity.

In accounting, costs are the monetary value of expenditures for supplies, services, labor, products, equipment and other items purchased for use by a business or other accounting entity.

Explanation:

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identufy the sephers that are inteacting in the following senario a plant carbon dioxide

Answers

Answer:

Increased Production of Photosynthesis

Explanation:

Carbon dioxide make plants more productive because photosynthesis relies on using the sun's energy to synthesise sugar out of carbon dioxide and water so a Carbon interaction with any plant species would alternate in photosynthesis. Plants and ecosystems use the sugar both as an energy source and as the basic building block for growth.

Blood vessel diameter fluctuates between being constricted and being dilated. This is the primary contributor to blood pressure. In order for blood vessels (arterioles) to maintain a steady pressure, there must be a prolonged presence of what ion in the smooth muscle cell's cytosol

Answers

In order for blood vessels to maintain a steady pressure, there must be a prolonged presence of CALCIUM ions in the smooth muscle cell's cytosol. This ion initiates smooth muscle contraction.

Arterioles are blood vessels that have muscular walls consisting of one or two layers of smooth muscle cells.

Calcium (Ca2+) ions start the contraction of the smooth muscle cells by binding to calmodulin protein and thereby activating myosin.

In consequence, Ca2+ ions act as a secondary messenger that activates calmodulin, stimulating the phosphorylation of the myosin light chain and thus triggering muscle contraction.

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1. Single-celled organisms
are also called
a. multicellular
b. bacteria
c. unicellular
d. viruses

Answers

Answer:

C

Explanation:

A unicellular organism, also known as a single-celled organism

What's metamorphism?
A) The process by which new minerals form from existing minerals that become unstable at Earth's surface
B) The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
C) The process by which new minerals form as a result of biological processes in living organisms
D) The process by which new minerals form as a result of precipitation from an aqueous solution

Answers

Answer:

D) The process by which new minerals form as a result of precipitation from an aqueous solution

fish is high in omega-3 fatty acids, which are most beneficial for the __________ as mentioned in the video.

Answers

Based on the information given, it should be noted that omega-3 fatty acids is found in fishes and this is essential for the heart.

Omega-3 fatty acids are typically found in seafoods such as fatty fish, she'll fish, crabs, oysters, etc. They are vital on maintaining a healthy body.

It should be noted that omega-3 fatty acids are key to the structure of the cells that we have in our bodies. They're also a source of energy and vital for the heart and lungs.

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Which one of the following parasites affect all domestic animals?
A.Ticks. B. Mites
C. Tsetse fly D. Fleas​

Answers

Answer:

D fleas affect all animals

Answer:

D

Explanation:

FLEA THE NAME ORDER IS SIPHONAPTERA

A woman who has had five preganacies tests positive for HIV by Western blot. What is the most likely reason for this result

Answers

Explanation:

Multiparous women often have HLA antibodies. The Western blot antigens are derived from HIV grown in human cell lines having HLA antigens. A cross reaction with HLA antigen(s) in the Western blot could have occurred.

which statement concerning rare threatened or endangered species is true

Answers

These species are fully protected by law. When should a hunter begin to get in shape for a hunt?

Plants that we reconize today spend the majority of their life in the “blank”

A) haploid Phase

B) seed phase

C) diploid phase

D) gametophyte

Answers

Answer:

The answer is C diploid Phase

Answer:

The answer is C.

Explanation:

Plants that we reconize today spend the majority of their life in the diploid phase.

During the sporophyte phase, a diploid plant body (one with two sets of chromosomes) develops and finally generates spores via the process of meiosis. Mitotic division of these spores results in the formation of gametophytes, which are gamete-producing organisms that are haploid (have a single pair of chromosomes).

Sugar and yeast inflate a balloon
because what is produced

Answers

Answer:

As the yeast feeds on the sugar, it produces carbon dioxide. With no place to go but up, this gas slowly fills the balloon. A very similar process happens as bread rises. Carbon dioxide from yeast fills thousands of balloonlike bubbles in the dough.

Explanation:

Carbon Dioxide. It produces Carbon Dioxide

Can you help me (only used these terms)

Molecule
Subscript
Element
Solid
Compound
Liquid
Pure substance
Mixture
Vapor (gas)

Answers

Answer:

Subscript- tells how many of each atom there are in a chemical formula

element- a substance containing only one type of atom

solid- a state of matter where particles vibrate and are not free to move

compound- two or more atoms chemically bonded together

liquid- a state of matter in which particles slip past each other

pure substance- all of the smallest individual pieces are the same

mixture- different types of atoms or molecules that are physically mixed together

vapor- a state of matter in which molecules are far apart

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Before fossil fuel use became widespread, which of the following did people use for a. energy?
b. wind
c. water
d. animals
e. all of these

Answers

Answer: im not 100% but i think its E all

Explanation:

Explain what must happen before a cell can divide

Answers

Answer:

the cell must go through mitosis and chromosomes in the nucleus must double

Before a cell divides, the strands of DNA in the nucleus must be copied, checked for errors and then packaged into neat finger-like structures. The cell division stages encompass a complicated process that involves many changes inside the cell.

what is called renewable energy and nonrenewable energy​

Answers

Answer:

Resources are characterized as renewable or nonrenewable; a renewable resource can replenish itself at the rate it is used, while a nonrenewable resource has a limited supply.

Explanation:

Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.

Answer:

The type of energy which can be used again and again is called renewable energy.

The energy which cannot be used again and again is called non renewable energy.

(Branliest) Please give me the answer to these

Answers

Answer:

Explanation:

There are over 1300 imperilled species in the United States. 33.4% has been caused by introduced species or more so invasive species

The invasive or introduced species in the United States has seen an economic impact since the damage can be seen in both animals and plants. Now with an invasive species brought about, the naturally occurring species are left fighting for a spot in the habitat and lose in most cases. So economically, the United States has to spend money to get rid of the invasive species

Some of the invasive species have been known to live all year long, and so during the winter seasons, they act as food sources to birds and other animals.

if one says that the clearance value of glucose is zero, what does this mean?

Answers

Answer:

Normally all the glucose is reabsorbed so yes thats the answer

Individuals joining a population is an example of emigration / immigration​

Answers

Answer:

immigration

Explanation:

Which of the following is most likely to occur at a convergent boundary?
A. Mountain formation
B. Sea floor spreading
C. Faults
D. Mid-Atlantic rift

Answers

Answer:

A) a mountain formation

Explanation:

Suppose a person uses a microscope to look at a cell from the leaf of a tree.


Which structure would they see that would not be found in a cell from a fingernail?



ribosomes



chloroplasts



cilia



mitochondria


do not put a link

Answers

Answer:

chlooplast

Explanation:

because those are the ones that are only in plants and they make photosynthesis

The answer is chloroplast.

Plants obtain energy from
a. soil
c. anabolism
d. fertilizer
b. sunlight

Answers

Answer: B. Sunlight

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Answer:

Sunlight

Explanation:

Plants rely on the energy in sunlight to produce the nutrients they need. But sometimes they absorb more energy than they can use, and that excess can damage critical proteins. To protect themselves, they convert the excess energy into heat and send it back out.

66
Chapter 6 Discussion
nts
This discussion will require you to do an experiment with a friend or a member of your family. This experiment is
suggested by Stanley Coren and his associates to demonstrate Weber's law (Coren, S., Ward, L., & Enns, J.T. (2003)
Sensation and perception (6th edition) New York: Wiley.)
et
You need three quarters, two envelopes, and a pair of shoes (preferrably heavier than a tennis shoe).
1. Place one quarter in one envelope and the remaining two quarters in the other
2. Have the person lift each envelope and tell you which is heavier
3. Have the person go away or turn around, and then place each of the envelopes into separate shoes
4. Have the person lift each shoe and tell you which is heavier
urces
. What were your results?
• Why?
• What was at work here?
• Describe how this principle might impact other areas of our everyday lives.
• Give at least three specific examples.
Respond to at least one other classmate.

Answers

Deeeeeeeeeee e e e e e e e e e e. E e we. De. E e e e ee

This experiment shows that people often associate weight with quality. That is, the heavier it is, the better it is. This experiment proves that this thinking is illogical.

How may this experiment help in business?

Because man is a rational being who is not consistently logical or rational, it  may help to ensure that ones product of good quality and heavier than that of the opposition.

Recall that people often make decisions that are irrational as long as they are happy with it.

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the words ""antigen"" and ""virus"" are interchangeable.

Answers

Answer:

False

Explanation:

A virus (which is a pathogen) has a lot of antigens on its surface, so they can't be used interchangeably.

100!!! POINTS!!!!
On the map, take a close look at the boundary along southern California and Mexico’s Baja California Peninsula. The arrows on the map show the direction and speed of the plates along this boundary in millimeters per year. Based on the speed and direction of the arrows, identify the type of plate boundary at this location. Which landforms or events are likely to occur there as a result? (Hint: It may be helpful to model the motion of the plates using your hands or pieces of paper.)

Answers

Explanation:

Thus, at convertgent boundries, continental crust is created and oceanic crust is destroyed. Two plates sliding past each other forms a transform plate boundry

The area around the convergent boundries, continental crust is created then the oceanic crusts were destroyed.

What are land forms?

The term land form is used to describe the physical features that describe the geography of any particular area.

Looking at the map, in the area around the convergent boundries, continental crust is created then the oceanic crusts were destroyed.

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Compare 41 Calories to 410 kcal (1 kcal = 1,000 calories). (1 point)
O 41 Calories is greater than 410 kcal
O 41 Calories is equal to 410 kcal
41 Calories is less than 410 kcal
It is not possible to compare these two values

Answers

From the calculation, we can deduce that 41 Calories is less than 410 kcal.

Given the following data:

Energy in calories = 41 CaloriesEnergy in kcal = 410 kcal

To compare 41 Calories to 410 kcal, we would simply convert the given values to the same base values:

Hence, we would make Calories the base value by converting the value in kcal to Calories as follows:

Conversion:

1000 Calories = 1 kcal

41 Calories = X kcal

Cross-multiplying, we have:

[tex]1000X =41\\\\X=\frac{41}{1000}[/tex]

X = 0.041 kcal.

From the calculation, we can deduce that 41 Calories is less than 410 kcal.

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Answer: 41 Calories is less than 410 kcal

Explanation: I took the test and passed

To all bug experts, what is this bug?

Answers

Answer:

I think it is an emerald cockroach

at what point in sperm production do you hypothesize that loss of the testis-blood barrier would have an immunological effect on sperm production?

Answers

Answer:

when u do ittttt

Explanation:

Use the
Color-Enhanced TEM Magnification: 15,000 x
6. The photomicrograph shows which kind of cell?
A. prokaryotic cell C. animal cell
B. eukaryotic cell D. plant cell

Answers

A. Prokaryotic Cell.

..............

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