3. How are the long DNA molecules found in eukaryotes packed into short chromosomes?

Answers

Answer 1

Explanation:

DNA is tightly wound around histones,forming nucleosomes. Nucleosomes are tightly coiled and supercoiled to form chromosomes.


Related Questions

what direction does rna polymerase synthesize rna?

Answers

Answer:RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5' to 3' direction. It moves forward along the template strand in the 3' to 5' direction, opening the DNA double helix as it goes.

Explanation:

If you help I'll give you a brain list

and for the record The question wants me to explain how the blood in the heart reaches the lungs

It's everything in the photo; all you have to do now is explain it.

Answers

Blood leaves the heart through the pulmonic valve, it then moves through the pulmonary arteries which branches to the left and right lungs.

When the deoxygenated blood reaches the lungs, it is then oxygenated and returns to the heart through our pulmonary veins.

Hope this better explains it!

Leaves are modified as tendrils for climbing as in
a) Cactus
b) Pea
c)Citrus
d)Bougainvillea​

Answers

Answer: pea

Explanation:

In the garden pea, it is only the terminal leaflets that are modified to become tendrils. In other plants such as the yellow vetch (Lathyrus aphaca), the whole leaf is modified to become tendrils while the stipules become enlarged and carry out photosynthesis.

if the woman and a man with normal clotting function have one biological daughter and one biological son, which children are predicted to have hemphilia A

Answers

The children Thats predicted to have hemophilia is the biological son

and this one pls thx ill mark brainliest

Answers

Answer: the brain already knows what to do.

Explanation:

brainilest me

Genetic variation is needed for the long-term survival of a species.

True
False

Answers

True without genetic variation a single disease could dramatically reduce a species if they are susceptible to that disease. Genetic variations allows for a diverse gene pool that leads to long term survival for a species

in what part of the given pathway is norepinephrine secreted?

Answers

Answer:

From the varicosities of the postganglionic fiberSource: Mastering A&P #10: The Sympathetic and Parasympathetic System - Quizlet

In the post-ganglionic fibers in the sympathetic division.

Fill out the data table below with the range of each factor that will produce the optimal number of oxygen bubbles.

Answers

The optimal ranges for the formation of oxygen bubbles vary between each plant, however, only water, c02, and temperature are limiting factors for photosynthesis.

This question is based on observations made during the course of an experiment designed to measure the optimal ranges at which oxygen bubbles form, given that these are an indication of photosynthesis.

Due to this, the information given will be generalized. Firstly, there is no exact optimal range of light for the formation of oxygen bubbles (photosynthesis) given that this is not a limiting factor.

Excess of light will have no effect on photosynthesis, only the lack of light can cause negative effects, therefore any light past the minimum threshold is fine.

On the other hand, water, light, and C02 are in fact limiting factors and have optimal ranges. For water, this optimal range varies greatly and therefore I cannot offer a general value, but an excess of water will "drown" plants by not allowing the formation of air pockets in the soil.

C02 sits at an optimal range of 1,000-1,300ppm for the best results. Lower concentrations cause a lower rate of photosynthesis given that it is the primary substrate for the process to begin. At too high levels, plants will have to adapt which can slow the process.

Finally, temperature is also a limiting factor for photosynthesis. Its exact value cannot be given since it varies greatly between plant species.

However, in general, terms, since it is an enzyme-dependent reaction, we can apply the general temperature at which enzymes function best which is around 37 degrees.

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What change in the mass number of a nucleus occurs when the nucleus emits an alpha particle?

Answers

Answer:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

Explanation:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

what are sunspots and how do they affect us?

Answers

Answer:

Basically, Sunspots are storms on the sun's surface that are marked by intense magnetic activity and play host to solar flares and hot gassy ejections from the sun's corona.

Explanation:

ANYONE FROM K12 KNOW THE ANSWERS TO THIS PART OF THE 3.25 MITOSIS LAB??? I NEED HELP (no links)

Answers

Answer:

1. provide the correct order for the stages of mitosis

in the process of genetic profiling/dna fingerprinting, what is compared between two people/samples?

Answers

Answer:

"DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect." information from a website so reword it a bit and you should be ok.

In the process of genetic profiling/ data fingerprinting, genetic profiling is a process that can be compared between two people/samples.

What is genetic profiling?

DNA profiling compares only the most variable sections of DNA, which has an advantage over whole genome sequencing when seeking to identify genetic changes between two individuals.

In the field of biology known as comparative genomics, genome sequences from various species—including humans, mice, and a broad variety of other organisms—from bacteria to chimpanzees are compared.

"DNA fingerprinting is a lab method used to connect biological evidence to a defendant in a criminal investigation. A DNA sample from a suspect is compared to one acquired from a crime scene. The evidence originated from that suspect if the two DNA profiles match.

Therefore, genetic profiling is compared between two people/samples.

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When protons are actively transported across the cristae membrane in mitochondria to set up a proton gradient between the inter-membrane space and the mitochondrial matrix, this is referred to as___________________

Answers

Answer:

Explanation:

Heres where to get your answer

https://www.info.com/serp?q=website%20medical&segment=info.0546&s1aid=3788024678&s1cid=11804561937&s1agid=114484240723&s1kid=kwd-944088888&utm_source=adwords&gclid=CjwKCAiAm7OMBhAQEiwArvGi3IMQUyr3aRG07nCggQt-8rAAgyPT3rJedCcJxTAl1ve9LJwgIxq21RoC4yQQAvD_BwE

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What is the conversion factor from km. to ft.? If Joe traveled 12 kilometers, how many feet did he travel?

Answers

Answer:

The distance traveled by Joe in feet is 39,372 ft:

Explanation:

The conservation factor from km to Ft is 1 km = 3280.84 feet.

* In order to convert the value-form km to ft then we multiply the given value of the length by 3281.

*We are given that:

*Distance traveled by Joe = 12km

*Distance in feet = 12×3281

*Distance in feet = 39,372 ft

**Thus, the Distance traveled by Joe in feet is 39,372 ft.

The conversion factor from kilometers to feet is 3280.84 feet/kilometer. This means that there are 3280.84 feet in every kilometer.

So, if Joe traveled 12 kilometers, he traveled 12 * 3280.84 = 39370.08 feet.

1 kilometer = 3280.84 feet

12 kilometers = 12 * 3280.84 feet = 39370.08 feet

Therefore, Joe traveled 39370.08 feet if he traveled 12 kilometers.

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_______ is the backup energy molecule that can be used to rapidly regenerate depleted ATP in active skeletal muscle.

Answers

Answer:

Phosphocreatine

Explanation:

Which of the following is released during cellular respiration?

Carbon dioxide
Glucose
Mitochondria
Oxygen

Answers

Answer:

carbon dioxide ( CO2 ) is released during cellular respiration

Answer:

Carbon dioxide

Explanation:

Someone plz help me :(

Answers

Answer:

it's a or c but I think it's a

The spread of information from one neuron to several neurons, or from one pool to multiple pools, is known as __________.

Answers

Answer:

Divergence

Explanation:

Divergence is the answer because divergence spreads information to several neurons.  

Gregor Mendel’s research formed the basis of the field of
genetics.
dominance.
recessiveness.
selective breeding.

Answers

Answer:

The answer is genetics

Explanation:

I chose this and got it right

Please mark me as brainly!

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Females have the chromosomes XY.

True
False

Answers

Answer:

False

Explanation:

The X chromosome is one of two sex chromosomes. Humans and most mammals have two sex chromosomes, the X and Y. Females have two X chromosomes in their cells, while males have X and Y chromosomes in their cells

(Hope this helps can I pls have brainlist (crown)☺️

Answer:

false

Explanation:

female have XX

in which phase of the cell cycle do cells check to determine whether the dna is fully and correctly replicated?

Answers

Answer:

at the end of G2

Explanation:

What parts of our eyes help us see light?

Answers

Answer:

it's called the renting it controls the pupil

Why is an atom said to be electrically neutral? Please i need further explanation​

Answers

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge.

which division of the ans is associated with the fight-or-flight response?

Answers

It is in the Sympathetic Division

Organisms that obtain food by eating other organisms or the

remains of other organisms are called...

Answers

These are secondary consumers (predators/carnivores) . Then the remains of other organism detritus. And animals that feed on the detritus can be called decomposers or detrivores

Use the F=ma triangle to determine the mass of an object accelerating at a rate of 10m/s2 due to a force of 60N that was applied to that object.

Answers

Answer:

6

Explanation:

For this question it just takes a little bit of simple algebra. F=MA is an equation that will pop up again if you continue with an interest in science. F=MA actually say force=mass(acceleration). Which then is changed for this problem to M=F/A.

60/10=6

Question 3 of 10
What is immigration?
O A. When animals die in an ecosystem
O B. When animals are born in an ecosystem
O C. When animals move into an ecosystem
O D. When animals leave an ecosystem
SUBM

Answers

Answer:

the answer to your question is is c.

which is a wildlife species category that state resource agencies may use

Answers

Answer: Large mammals, Small mammals, Upland birds, Waterfowl and wetland birds, Birds of prey.

Wildlife species are defined as undomesticated animal, plant, or organism that grows in the wild and are not introduced to humans. The species that can be used by the state resource agencies are large mammals, small mammals, birds of prey, and waterfowl.

The animals that can be hunted legally must be:

The animal can be used as food and should be useful. The population of the animals should be high. The hunters should have a challenge while hunting them.

Also, some species labeled as endangered must be protected by law. These species are on the verge of getting extinct and are present in the least numbers to harvest.

Thus, the state agencies may use large mammals, small mammals, and waterfowl.

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what is the alternate name for 0 degrees latitude

Answers

Answer:

the Equator

The Equator is the line of 0 degrees latitude.

Explanation:

I HOPE ITS HELP YOU

Answer:

0 degrees latitude is known as the equator.

Explanation:

hope this helps. . .

good luck!    uωu

3. The abilities to dissolve in water and to conduct electricity are examples of

A. natural properties.
B. chemical properties.
C. natural laws of matter.
D. physical properties.​

Answers

Answer:

D

Explanation:

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