Does crossing over occur in sex
chromosomes?

Answers

Answer 1

Answer:

Recombination occurs routinely everywhere except on the sex chromosomes, where the genetic deck of cards remains stacked, unable to shuffle information -- with the exception of two small regions located at the tips of the X and Y chromosome, called pseudoautosomal regions (PAR1 and PAR2).

Explanation:

THIS IS NOT MY WORDS! I HOPE THIS HELPS!


Related Questions

I need someone who studies biology and genetics.

Is a pig crossed with a chimp possible, I just read an article about this and the person who had the idea was someone with the last name MCkarther PH.D. it made the news.

Answers

Answer:

The cross between two different species is called hybridization. The truth is that, for hybridization to occur, the species in question must have a certain kinship with each other, that is, they must belong to the same family of animals. An example is the cross between tigers and lions, pigs and wild boars, donkeys and donkeys, etc. Now, if there is no such familiarity between species, the truth is that hybridization will not be possible, which is the case of pigs and chimpanzees with each other.

All the following stages must occur for a woman to get pregnant. However, after which stage can a woman be described as pregnant?

Answers

Answer:   The legislation repeatedly refers to that point as "20 weeks after fertilization." Medically, however, a pregnancy is generally "dated" from "gestation," defined as the time of the woman's last menstrual period, because that is a date most women can pinpoint.

In order to be classified as a green plant, an organism should be eukaryotic, have double-membraned chloroplasts, cell walls, and go through the process of _______.

Answers

Answer:

photosynthesis

Explanation:

plants are the only living organisms that can prepare their own food

1pt Which organism gets energy from another organism?
O A. an oak tree
O B. algae
O C. a mushroom
OD. a rabbit

Answers

Answer:

algae

Explanation:

I think it’s b bc I did this in class and i got it right

how do organisms reproduce asexually

Answers

Answer:

my cloning all the type of cells the animal has

Explanation:

Hey I don’t understand this can someone help?

Answers

It is true...............

Answer is True.

if you search in website "Electromagnetic Wave" The same picture will pop up

to participate in conservation efforts.
It is important for
a. government
b. business
C. citizens
d.
all of the above
Please select the best answer from the choices provided
Ο O O O O

Answers

Answer:

d

Explanation:

Which of the following statements is true?

The spongy layer doesn't have any chlorophyll.
The epidermis is the main location for photosynthesis.
The cuticle slows down the loss of water in a leaf.
Plants can make food without chlorophyll.

Answers

false statement: the cuticle slows down the loss of water in a leaf.

Weather and sunlight can be best described as:
A. Biotic factors
B. Abiotic factors
C. Succession
D. Pioneers

Answers

Answer:

B

Explanation: Abiotic factors are the factors in an enviroment that are not living. Since sunlight and weather are not living, they are abiotic factors.

Answer:

Abiotic Factors:is a non living parts of an ecosystem that Shapes it's environment e.g weather,sunlight,wind,temp e.t.c

How are genes expressed into visible traits, such as eye color or tail length?
A) They are instructions for how sugars are transported in the body

B) They tell cells how to grow

C) They are instructions for how new new cells should divide

D) They are instructions for how proteins should be made

Answers

Answer:

D

Explanation:

The zinc chloride produced by the reaction is in what state

Answers

Answer: Solution in Water

Explanation:

I believe this refers to the reaction between Zinc and Hydrochloric acid.

When this happens, the solution will be Zinc Chloride but as it happened in a solution (the acid), the resulting Zinc Chloride salt would be in aqueous form which means that it would be a solution in water which is the other product of this reaction.

Had the zinc reacted with gaseous HCI, it would have resulted in a Zinc Chloride with no liquid in it.

What process takes place at the boundary between the capillaries and the alveoli?

AIR
Bronchiole
Alveoll
Small blood
vessels (capillaries)

A. An exchange of blood and lymph between the circulatory and
lymphatic systems

B. An exchange of oxygen and carbon dioxide between the
circulatory and respiratory systems

C. Reabsorption of water into the circulatory system from the
excretory system

D. An exchange of air between the circulatory and respiratory
systems

Answers

Answer:

B because aveoli are part of the lung Branch and capillaries take in the oxygen with blood?

Explanation: my guess since carbon dioxide also needs to be excreted out of lungs.

answer is b i think so he is correct

what describes sand?

Answers

Answer:

Sand is a granular material composed of finely divided rock and mineral particles.

Sand is a granular material composed of finely divided rock and mineral particles.

Here are some adjectives for sand: dry and trodden, treacherously empty, unadulterated and uncompromising, copious wet, delicious velvety, everywhere gray, fine-grained orange, deader dry, arid and thick, arid sweltering, older, oxidized, loose and powdery, coarse sharp, just bleak, gritty, stinging, sweet and gilded, ...

Your body's internal feedback loops work by responding to
A. messages sent by the brain to body organs
B. changes in the internal environment
C. hormones from the pineal gland
D. information from the external environment
PLEASE HELP ME THIS IS URGENT

Answers

Answer:

B. changes in the internal environment

how does genetic factors influence the growth of trees in a forest?

Answers

Hi there. An answer is below!

Explanation:

The genotypes in a plant determines the amount of time it takes to grow. For example, if a plant has genotypes that are young, they will grow quicker. A plant that has older genotypes will grow slower. These genetic factors are what make trees grow quicker or slower than each other.

Need help please and thanks

Answers

Answer:

B

Explanation:

Hope this helpful for you

Yep the answer should be B

Please i need help
What is the answer?

Answers

Answer:

50% I think

Explanation:

I put in on a square chart with rr at the top and Rr on the side. You'd get two offspring with Rr and two with rr. (Lowercase stand for ressesive traits and capital leters stand for dominant traits)

If a drug was developed that interfered with the proper functioning of the microtubules found within the axons of neurons, how would you expect this to impact axonal transport processes

Answers

Answer and explanation:

If a drug that interfered with the functioning of microtubules found in axons were to be developed, I would expect that axonal transport would be inhibited or at least severely impaired.

Microtubules are proteins made of tubulin that are of key importance in the transport of different proteins, organelles, and synaptic vesicles (among others) to and from the neuron's soma through its axon. Microtubules are part of the cytoskeleton, they rearrange themselves in order to run along the length of the axon so motor proteins like kinesin and dynein can carry diverse structures all through the neuron.

If microtubules were to cease functioning, axonal transport would stop and many processes of great importance for the nervous system, such as neurotransmission, would be hugely affected. This would most likely produce neurological disease.

Help plz plz plz plz plz plz plz plz plz can someone tell me the percentage

Answers

That would be a 50% chance

Are chicken nuggets more like a taco or a hamburger?!?!?! I NEED TO KNOW!!!!!!!!!!!!!

Answers

Answer:

HAMBURGER???

Explanation:

Answer:

hamburger

Explanation:

a For a certain breed of cat, short tails are dominant (T) and long tails are
recessive (t). The Punnett square below shows a cross between two parents.
What is the phenotype ratio for this cross?

Answers

the cross over would be Tt

Cómo es estudiado hoy el organismo humano?

Answers

anatomía y fisiología


If a force of 6 newtons to the right and a force of 6 newtons to the left are acting upon a ball, the ball will:

A: move to the right with the same speed

B: move to the left with the same speed

C: be forced vertical with the same speed

D: continue with the same velocity

there is one correct answer

Answers

If a force of 6 newtons to the right and a force of 6 newtons to the left are acting upon a ball, the ball will continue with the same velocity.

What is a balanced force?

A balanced force occurs when the opposing forces acting on an object is equal.

According to Newton first law of motion, a body will remain at rest until it is acted upon by an external force.

However, a force of 6 newtons to the right and a force of 6 newtons to the left are acting upon a ball, this means that a balanced force is acting on the object, hence, will move at the same velocity.

Learn more about force at: https://brainly.com/question/13191643

#SPJ2

Answer:continue with the same velocity

Explanation:

30. Organism Y lives in a dry, dying tree and obtains its nutrients from the tree that it lives
on. Thus, organism Y is known as a
A bulk feeder
B. suspension feeder.
C. fluid feeder
D. substrate feeder

Answers

Answer:

The answer is D. because they live on or in their food.

Explanation:

substrate feeders include maggots, larva of moth,.

eat thru soft tissue of all living things.

Identify the two main gases that are exchanged between the respiratory
and circulatory systems.

Answers

Answer:

Oxygen and Carbon Dioxide

Explanation:

oxygen and carbon dioxide

above has a mass of 30 kg the area of the base is 150 metre square find the pressure exerted by the box on the floor

Answers

I’m also stuck on this question

the part of the brain controlling basic body functions such that heart rate and blood pressure is what?

Answers

Answer: The brain stem, at the bottom of the brain, connects the cerebrum with the spinal cord. It includes the midbrain, the pons, and the medulla. It controls fundamental body functions such as breathing, eye movements, blood pressure, heartbeat, and swallowing.

Explanation:

Question 7 please help

Answers

The correct answer is D. Bacterial cell

The ocean layer of rapid temperature change with depth is known as the _____. thermocline mixed zone deep zone trophic level

Answers

Answer:

Thermocline

Explanation:

i need help asap, that would be great!

Answers

Answer:

the 4th one

Explanation:

Answer:

secondary succession

Explanation:

just read it

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