Which best describes how DNA fits inside a cell nucleus?​

Answers

Answer 1
DNA is tightly packed in the nucleus. DNA molecule wraps around histone proteins to form tight loops called nucleosomes. Nucleosome is a structure formed by two molecules of each H2A,H2B,H3&H4. They associate to form an elliptical bead like structure. One nucleosome is covered by a H1 protein and 1 3/4 of DNA wraps around one nucleosome. These nucleosomes coil and stack together to form fibre called chromatin which constitutes the genetic material inside the nucleus.

Hope this helps
Answer 2

Answer:

DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus

Explanation:


Related Questions

In general, which factor is NOT critical when beginning an exercise program?
A. using appropriate protective equipment during exercise
B. finding friends who like to exercise the same way you do
C. seeing your doctor for a physical assessment prior to beginning exercise
D. choosing clothing that is designed to match your exercise program
Please select the best answer from the choices provided.
Ο Α
B
OD

Answers

Answer:

The non-critical factor when a person begin an exercise program is finding friends who like to exercise the same way you do.

Explanation:

Physical exercise is an ideal way to stay healthy. It is a personal activity that should be done in the best way and with a minimum risk. Finding friends who like to exercise can contribute to motivation, but it is not an indispensable element when establishing a personal exercise routine.

Since it is a personal activity that affects an individual's health, personal factors should be considered when establishing a exercise program.

Regarding the other options, which are important factors for the exercise :

Use appropriate protective equipment during exercise, allows to avoid injuries during physical activity.See the doctor for a physical assessment prior to beginning exercise, establishing the state of health and physical condition appropriate for this activity.Choose clothing that is designed to match your exercise program,  which must be comfortable and light, allowing maximum performance to be achieved.

how can to plant cells from the same plant have different structures and functions

Answers

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Explanation:

What is the water potential of a .20 M solution of sucrose in an open beaker at 23 degrees Celsius?

Answers

Answer:

-4.92 bars

Explanation:

The water potential of a solution is the sum of the pressure potential and the solute potential of the solution. This can be mathematically expressed as;

Фw = Фp + Фs, where Фw = water potential, Фp = pressure potential, and Фs = solute potential.

For a solution that is in an open beaker, the Фp = 0. hence

Фw = -Фs

Also,

Фs = iCRT, where i = number of particles the molecule will make in water (1 for sucrose), C = molar concentration, R = pressure constant (usually 0.0831 liter bar/mole K), and T = temperature (in kelvin).

In this case, i = 1, C = 0.20 M, R = 0.0831, T = 273+23

Фs = 1 x 0.20 x 0.0831 x 296 = 4.92 bars

Therefore,

Фw = -4.92 bars

Which characteristic describes the troposphere? contains the ozone layer has the highest air pressure spans 12–50 km above Earth is a good place for planes to fly

Answers

Answer:

Has the highest air pressure

Explanation:

The troposphere contains a lot (around 80%) of earth's atmospheric mass, which makes it very compressed and dense, thus it having the highest air pressure.

(and I also just took the quiz; good luck!!)

Earth's atmosphere is made up of many layers with different temperatures and pressure. The troposphere is the lowest layer of the atmospheric regions.

The correct answer is:

Option B. The highest air pressure.

This can be explained as:

The ozone layer is not found in the troposphere but lies in the stratosphere.

The troposphere has the highest pressure because it is closer to Earth surface and all the other layers lie above it.

The troposphere lies up to 0 -15 km from the Earth surface.

Planes can fly above or below the troposphere layer.

Therefore, the troposphere has the highest air pressure.

To learn more about the troposphere follow the link:

https://brainly.com/question/13942624

How does a cell of a unicellular organism differ from a cell of a multicellular organism

Answers

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function

Explanation:

Distinguish the difference between dehydration synthesis, and hydrolysis?

Answers

Explanation:

In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.

Which of the following are examples of malpractice in the healthcare workplace? Check all of the boxes that apply.


medication errors


surgical errors


computer errors


diagnosis errors


insurance errors

Answers

Answer:

1 no. is the answer of this t

Answer:

A,B,D

Explanation:

Just did it

What cell process is this and how do you know !

Answers

Answer:

Explanation:

Cell reproduction is the process by which cells divide to form new cells. Each time a cell divides, it makes a copy of all of its chromosomes, which are tightly coiled strands of DNA, the genetic material that holds the instructions for all life, and sends an identical copy to the new cell that is created.

Explanation:

Cell reproduction is the process by which cells divide to form new cells. Whenever a cell divides it makes a replica of its chromosomes, which are tightly coiled strands of DNA, the genetic material that holds the instructions for all life, and sends an identical copy to the newly created cell.

The net force on an object is 80 N. The mass of the object is 40 kg.
What is the acceleration of the object?
I

Answers

Answer:

The acceleration of object is 2 m.s⁻².

Explanation:

Given data:

Force on object = 80N

Mass of object = 40 kg

Acceleration = ?

Definition:

The acceleration is rate of change of velocity of an object with respect to time.

Formula:

a = Δv/Δt

a = acceleration

Δv = change in velocity

Δt = change in time

Units:

The unit of acceleration is m.s⁻².

Acceleration can also be determine through following formula,

F = m × a

a = F/m

Now we will put the values in formula.

a = 80 N/40 kg

a = 2 m.s⁻²  (N = Kgm.s⁻² )

How does the genetic code for an entire human being fit into the microscopic nucleus of a skin sell?

Answers

Answer:

The DNA of each chromosome is coiled, compacted, and coiled up some more.

Explanation:

Genetic code is the nucleotide sequence of DNA which is compacted to a chromosome to fit in the skin cell by the protein which compacts the long DNA into the small chromosome.

What is DNA organization?

Levels of DNA Compaction nucleosomes, which resemble "beads on a string," are formed when double-stranded DNA is wrapped around histone proteins. A 30-nm chromatin fiber is formed from the nucleosomes.

The chromosomes narrow more during mitosis in a cell. In the S phase of interphase, DNA replication occurs. To create chromosomes, the chromatin fibers are further coiled and compressed.

Chromosome DNA is crammed into the eukaryotic nucleus little area by proteins. The resultant DNA-protein combination is known as chromatin, and these proteins are known as histones.

Therefore, the proper sequence is DNA, Nucleosome, Chromatin, and Chromosome, so by this organization genetic code of an entire human being fit into the nucleus of a skin cell.

Learn more about DNA, here:

https://brainly.com/question/13816304

#SPJ2


Which answer below is NOT an example of
a cell?
Heart cell
Lung cell
Stomach cell
Liver

Answers

Answer D. Liver is not a cell

he population of Japanese sika deer in central Japan was determined each year from 2005 to 2014. The sika deer population underwent logistic growth starting at 26,000 deer in 2005 and stabilized at 58,000 deer between 2012 and 2014. Based on these data, the rmax for this population was determined to be 0.57. Central Japan contains a variety of habitats, including forests and grasslands. Sika deer benefit from the resources in grasslands more than forests; if deforestation occurred, producing more grasslands in the region, the carrying capacity for sika deer population would increase. What would the population size of sika deer be one year after the carrying capacity increased to 70,000 as a result of deforestation

Answers

Answer:

The population would grow to 63,667 deer in a year, and the growth rate would decrease the following year.

Explanation:

Sika deer population : starting at 26000 in 2005

                                     stabilized at 58000 between 2012 and 2014

                                      rmax = 0.57

The population size of Sika deer be one year after the carrying capacity increased to 70000 as a result of deforestation

carrying capacity (k) = 70000

population size ( N ) = 58000

max growth(rmax) = 0.57

To determine the growth

dN/dt = rmax N [ (K-N) / K ]  ---------- (1)

insert the given value into the formula above

dN / dt = 0.57 * 58000 [ 12000 / 70000 ]

           = 33060 [12000 / 70000 ]

           = 5667

The increase in population = 5667 + 58000 = 63667

The population size of Sika deer one year after the carrying capacity increased to 70000 as a result of deforestation is; 63667 deer

Calculation of Growth Rate

We are given the following about the Sika deer population;

Initial Population in 2005 = 26000Stabilized Population between 2012 and 2014 = 58000r_max for population = 0.57

Now, we want to find the population size of Sika deer one year after the carrying capacity increased to 70000 as a result of deforestation

Thus;

carrying capacity; k = 70000

population size; N = 58000

max growth rate; r_max = 0.57

Formula for the growth is;

dN/dt = (r_max × N)[(K - N)/K]

Plugging in the relevant values gives;

dN/dt = 0.57 × 58000[12000/70000]

dN/dt = 5667

Thus;

Increase in population = 5667 + 58000

⇒ 63667

Read more about growth rate at; https://brainly.com/question/20115298

Growth in population is the main cause of food shortages.

Answers

[tex]If\;this\;is\;a\;true\;or\;false\;question\;then\;your\;answer\;is\;true!\\\\Due\;to\;growth\;in\;population\;there\;has\;been\;lots\;of\;food\;shortages.[/tex]

Examine the diagram of the cell cycle. Which label identifies the stage in which the DNA is copied and the cell grows? W X Y Z

Answers

Answer:

w

Explanation:

none neeeded

I think the answer to this question is W.

In the first part of an experiment outline,you write a ___ statement

Answers

Answer:

the correct answered is a thesis statement

Answer:

question

Explanation:

so you can state your hypothesis

Which statement is true for both plants and animals?

Answers

Answer:

where are the statements

Explanation:

where are they

Answer:

plants and animals are living beings and they eat food for survive and grow

4. Thinking that someone is at the door when you hear the doorbell ring is an example of ​

Answers

Answer:

Inference.

Explanation:

An inference is when a conclusion is made based on observation. This logical conclusion is made based on what has been and is observed.

When a conclusion can be arrived at based on the observation or previous observations, then this can be referred to as an inference. Thus, when one can know that someone is there at the door when the doorbell rings, then that is an example of inference.

Thus, the correct answer is inference.  

what is the role of coenyme a in the cell

Answers

The molecule known as coenzyme A plays a key role in cell metabolism by regulating the actions of nitric oxide. Coenzyme A sets into motion a process known as protein nitrosylation, which unleashes nitric oxide to alter the shape and function of proteins within cells to modify cell behavior.

which statement best describes the use if a flowchart​

Answers

Answer:70% sure its d 30% on a

Explanation:

Answer:

D

Explanation:

it shows the step of a process

An example of a simple sugar would
be...
A. cellulose.
B. glucose.
C. glycogen.

Answers

Answer:

Glucose

Explanation:

I believe this is right, if not please let me know. hope this helps

The answer is B. Glucose

Be able to analyze data and make conclusions about the data

Answers

Elaborate more please

19. Which of the molecules in Model 2 would form hydrogen bonds with itself (that is, other molecules of the same type) or with water molecules if in a solution?

Answers

Am not very sure...........

Controls are important to make sure that there is a baseline to compare the impact of the independent variable to. True or False?

Answers

Answer:

The answer is True.

Explanation:

The control group is the group in an experiment that does not receive the changes by the experimenter(s). The independent variable cannot affect the control group.

Mass:
1.) What unit is used to measure mass in science?

Answers

Answer:

A Kilogram is used to measure mass in science

Explanation:

Mention any two differences between milk teeth and
permanent teeth.

Answers

Answer:

milk teeth will break as u grow up

and

permenant teeth will never break when u r young but as u grow older many people teeth will break

Explanation:

milk teeth will break as u grow up

and

permenant teeth will never break when u r young but as u grow older many people teeth will break

I attached the an image. Please mark me Brainliest.

Which feature is not found in viruses?
A) DNA
B) RNA
C) mitochondria
D) protein capsid

Answers

Answer:

C. Mitochondria

Explanation:

Viruses lack a mitochondria.

Answer:

im pretty good at biogly and the answer is C

Explanation:

The viruses can be either a DNA virus or RNA virus, which leads to the transfer of genetic data from mother to offsprings. They also often have the protein capsid which envelops the genetic material. But, mitochondria are absent, they are only seen in eukaryotic cells.

What kinds of gene mutations are possible?

Answers

Answer:

Missense mutation.

Nonsense mutation.

Insertion.

Deletion.

Duplication.

Frameshift mutation.

Repeat expansion.

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.

Explanation:

Which best describes when the body is working on counteracting an effect? when hormone levels in the body are all equal during a negative feedback loop during a positive feedback loop when the hypothalamus is signaling the pituitary gland

Answers

Answer:

The answer is a negative feedback loop. Negative feedback is used to counteract an effect and achieve back a homeostatic balance. An example of a negative feedback loop is in thermoregulation. When temperatures are too high, the hypothalamus induces body responses such as vasodilation and sweating that enable the loss of excess heat.

Explanation:

Answer:

its B

Explanation:

i took the test

Henry finds an element that is light blue, breaks easily in his hand, and does not reflect light. How should Henry classify the element?
F a metal
G a metalloid
H a non-metal
J a gas

Answers

I believe it is H not 100% sure though

According to research presented in the text, one of the most important environmental stimuli for premature babies is:
a. Music
b. Proximity to the biological mother
c. Smell stimuli
d. Touch

Answers

In my opinion is biological mother
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