Crossing-over occurs in prophase of mitosis and meiosis.
True
False

Answers

Answer 1
It is True crossing over occurs in prophase of mitosis and meiosis

Related Questions

What do you think would happen if the mitotic spindle did not function correctly?

Answers

Answer:

The presence of extra centrosomes leads to the formation of a multipolar mitotic spindle, which, if not corrected prior to anaphase, results in the segregation of chromosomes into more than two daughter cells.

Explanation:

An man about 80 years old, lives alone. He looks very weak and undernourished. His lower limbs bones are tender and thin. Due to poor diet and loneliness, he lacks the essential vitamins and minerals for his bone formation. Explain bone formation (ossification) , and bone marrow formation which this man is lacking.​

Answers

[tex] \large \text{Answer} \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]

All bone formation is a replacement process. During development, tissues are replaced by bone during the ossification process. In intramembranous ossification, bone develops directly from sheets of mesenchymal connective tissue. In endochondral ossification, bone develops by replacing hyaline cartilage, bone formation, also called ossification, process by which new bone is produced. ... Soon after the osteoid is laid down, inorganic salts are deposited in it to form the hardened material recognized as mineralized bone. The cartilage cells die out and are replaced by osteoblasts clustered in ossification centres.

Hope it helps you

If you make mutations in the nuclear localization signal of a nuclear protein, what will happen to the protein

Answers

Answer:

What would happen if the operator sequence of the trp operon contained a mutation that prevented the repressor protein from binding to the operator? a. In the absence of tryptophan, the genes trpA-E will not be transcribed. b. In the absence of tryptophan, only genes trpE and trpD will be transcribed. c. In the presence of tryptophan, the genes trpA-E will be transcribed. d. In the presence of tryptophan, the trpE gene will not be transcribed.

Explanation:

When an unbalanced force acts on an object, in which direction does the object
move?
The object moves in the direction of the net force.
The object moves in the direction of the smaller force.
The object moves in the opposite direction of the unbalanced force.
The object moves in the direction of the unbalanced force.

Answers

Answer:

Explanation:

The object moves in the direction of the net force.   It depends on what you have been told. I would say that A is the correct answer.

^

|

|===================>

A

Both the forces shown above are unbalanced. But the object will not move in the direction of either of them. The net force is somewhere between the two given forces and that's the direction of the motion.

A person who has type AB blood:

Answers

Answer:

B-positive (B+): 9%

AB-positive (AB+): 4%

A-positive (A+): 30%

what is the cytoplasm job in the factory?

Answers

Answer:

factory floor!

Explanation:

function:

Contains the organelles; site of most cell activity.

In carbon dioxide (CO2), there are two oxygen atoms for each carbon atom. Each oxygen atom forms a double bond with carbon, so the molecule contains two sets of double bonds. Two sets of double bonds means that the total number of electrons being shared in the molecule is two. four. six. eight.

Answers

Answer:

Eight

Explanation:

In a single bond there are 2 electrons

In a double bond there are 4 electrons

Two double bonds = 8 electrons

Answer:the answer would be eight hope this helps

Explanation:

El acero es homogénea,heterogénea,elemento,compuesto?

Answers

Answer:

El acero es una mezcla homogénea, sin embargo, está hecho de hierro y carbono. Una sustancia pura es diferente de una mezcla homogénea porque una sustancia pura tiene un solo componente.

Which of the following examples best describes a disturbance that is likely to result in significant, long-lasting changes to an ecosystem?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
A frost in late spring kills some of the earliest budding plants and flowers in a field.

(Choice B)
B
Tens of thousands of geese rest for a week at a large lake during their annual migration.

(Choice C)
C
The failure of a 60-year-old beaver dam floods a downstream meadow.

Answers

i would say C. resting isnt really going to change anything, they are still migrating and only SOME of the budding plants were killed not all.

The failure of a 60-year-old beaver dam floods a downstream meadow  best describes a disturbance that is likely to result in significant, long-lasting changes to an ecosystem

It cause immense damage to the property, habitats due to water flooding over them.

What is a dam?A dam is a barrier that stops or restrict the flow of surface water or underground streams.It is build across the stream or river to hold water back.It can used to store water, control floods and generate electricity.

To know more about Ecosystem and dams here

https://brainly.com/question/2872601

#SPJ2

which of the following can cause polyploidy
A : a single egg fertilized by two sperm
B: a diploid egg being fertilized by a normal sperm
C: a normal egg being fertilized by a diploid sperm
D : all of the above ​

Answers

Explanation:

a polypiody is a condition that has more than 2 sets of chromosomes. common in plants..

Hemolysis is:

O A) when a red blood cell is in a hypertonic solution and the cell ruptures

O B) when a red blood cell is in a hypotonic solution and the cell ruptures

O C) when a red blood cell is in a hypotonic solution and the cell shrinks

O D) when a red blood cell is in a hypertonic solution and the cell shrinks

Answers

A) When a red blood cell is in a hypertonic solution and the cell ruptures

The movement of the outer core is
important to life because...

Answers

Answer:

he movement causes powerful electric currents to develop in the liquid iron itself.

Explanation:

Matter begins to move through this food chain when the?

Answers

Answer: When the energy of the sun is captured by plants.

Which method of timber harvesting removes all trees from the harvest area?

Answers

Clear-cutting is the most common method of timber removal. Clear-cutting removes all the trees in a given area, often by using large machinery. From an economic standpoint, the benefit of this approach is that humans can harvest maximum timber with minimal energy and cost.

what type of stress is placed on a normal fault

Answers

Tensional stress is what’s placed on a normal fault

Which one of the following fuels directly produces CO2 but is considered carbon neutral?

Question 2 options:

a)

Wind


b)

Biomass


c)

Oil


d)

Coal


e)

Hydropower

Answers

Answer:

A. wind

B. coal

Explanation:

there are two fuels directly produces CO2 but is considered carbon neutral which are wind and coal

How the plants survive in tropical rainforest?

Answers

Answer:

The plants have adapted to the rainforest environment by growing their roots deep into the ground and extending their leaves high into the tree canopy to receive sunlight for photosynthesis. Mant plants have adapted to the immense amount or water they are exposed to in their environment.e

Researchers identify a gene in cockroaches that is responsible for their ability of nerve regeneration. How might it be possible for this gene to be used in treating human paralysis?

Answers

This gene could be analyzed to determine its homology level with a human gene, which then could be restored in its normal expression. This strategy can restore the normal phenotype in defective human cells.

Sequence homology, which refers to the level of evolutionary relationship among genetic or proteins sequences, is a fundamental subject matter to determine gene function.

From this approach (sequence homology search), researchers can identify valuable genes involved in diseases in which the restoration of their normal expression levels can be used to restore the normal phenotype in defective cells.

In this case, the identification of a gene in cockroaches that is responsible for nerve regeneration could be used for subsequent identification of a human homologous gene sequence, which then can be restored in order to treat human paralysis.

Learn more in:

https://brainly.com/question/6389591

Hey, I need help with this question:

Answers

Answer:

(D) two different species on the basis os reproductive behaviour

BRAINLIST PLS

How does one distinguish
between the left & right
sides of a heart?

Answers

Answer:

See explanation section for answer:

Explanation:

The left side of the heart contains the left atrium which allows oxygen rich blood to flow through the mitral valve and into the left ventricle. Whereas the right side of the heart contains the right atrium which allows the blood with poor oxygen levels to enter the right ventricle through the tricuspid valve.

Also, the left ventricle is larger than the right ventricle because the left ventricle is responsible for pumping the fresh oxygen rich blood throughout the body.

if bird cannot migrate what it does to survive

Answers

If a bird can not migrate, it must adapt to thrive on foods that are available in different seasons.

Mark and Michelle both have dark hair, which is a dominant trait. But their first child is blonde. Which is the most likely explanation

Answers

Both parents have a recessive blonde allele that got passed on to their child.

Another gene caused the alleles for brown hair to deactivate.

It's not possible--Mark can't be the real father.

One of the two has a blonde allele that is dominant in the child.

Answer:

They are heterozygous for the dark hair.

Which side is hypertonic ? A or B ?
Which side will gain water
What is c ?

Answers

Answer:

1-b

2-b

3-phospholipid bilayer

B side is hypertonic. It will gain water. C is Phospholipid layer.

What is Hypotonic Solution?

A hypotonic solution is a type of solution that has a lower osmotic pressure than any other solution to which it is compared. It is a solution in which a small amount of solute passes across a semipermeable membrane compared to the amount of solute in the other solution.

If the solute concentration outside the cell is lower than inside the cell, these solutes cannot cross the membrane, so the solution is hypotonic to the cell.

The cell membrane consists of a phospholipid bilayer containing embedded proteins present between these two solutions where a hypotonic solution has a relatively low concentration of solutes.

Thus, B side is hypertonic. It will gain water. C is Phospholipid layer.

Learn more about Hypotonic Solution, here:

https://brainly.com/question/29309024

#SPJ2

The carbohydrate molecule ____
is a powerhouse energy source.


A) Glucose

B) sucrose

C) lipid

D) amino acid

Answers

Answer:

The carbohydrate molecule ____ is a powerhouse energy source.

→ A) Glucose

Punnet Squares

A couple have 4 children, their first child has blood type A. the second child has blood type O. The third child has blood type AB, and the fourth has blood type B. What are the genotypes of the parents?

Answers

Answer:

a and ab blood types

Explanation:

the ability of a solution to change the shape or tone of the cell

Answers

Answer:

tonicity

Explanation:

this i the ability of a solution to change the shape (tone) of a cell by altering it's internal water volume

Which RNA molecule is involved in translating a short sequence of RNA into an amino acid, acting like a molecular Rosetta stone?
a
snRNA

b
tRNA

c
mRNA

d
rRNA

Answers

Given what we know about the translation process, we can confirm that the RNA in question that aids in the process of translating a short sequence of RNA into an amino acid is mRNA.

mRNA is referred to as messenger RNA. This RNA molecule acts as just that, a messenger carrying the necessary code to create amino acids and therefore, proteins. This messenger binds itself to the ribosomes of a cell, which are in charge of reading the code, one codon at a time, and chaining together the corresponding amino acids.

To learn more visit:

https://brainly.com/question/15878647?referrer=searchResults

If each of these food chains start with 10,000 grams of phytoplankton, how much reaches the highest trophic level in each food chain

Answers

Energy is transferred from one trophic level in a food chain to another. However, not all the energy available at a trophic level is transferred to the next.

Only about 10% of the energy in the lower trophic level gets to the immediate higher trophic level and the rest is lost as metabolic heat.

Thus, if a food chain starts with 10,000 grams of phytoplankton, the quantity that will get to the highest trophic level would depend on the number of intermediate trophic levels in between the lowest and the highest.

For every step the energy is transferred up the trophic level in the food chain, 90% of it is lost.

More on energy transfer in trophic levels can be found here: https://brainly.com/question/20135715

If a brown-eyed mother and a blue-eyed father have four children, three will probably have brown eyes. What can you conclude from this?

A. Brown eyes are a successive trait
B. Brown eyes are a submissive trait
C. Brown eyes are a recessive trait
D. Brown eyes are a dominant trait

Answers

Answer:

D. Brown eyes are a Dominant Trait

Explanation:

D. brown eyes are dominant trait

explain why calcuim and phosphorus from bone are important to the human body

Answers

Answer:

the mineral calcium helps your muscles, nerves, and cells work normally. Your body also needs calcium (as well as phosphorus) to make healthy bones. Bones are the main storage site of calcium in the body

Other Questions
A measuring cylinder contains 80 cm3 of a certain liquid. The liquid is poured into an empty beaker of mass 48 g. The total mass of the beaker and the liquid was found to be 136 g.(a) Calculate the mass of the liquid in grams.(b)Calculate the density of the liquid in gcm-3 Is gibbons state or fedefal Your task is to write a fictional newspaper article assuming that the Declaration of Independence was never written. Assume that the United States does not exist, and that the land now known as the United States is still a British colony. The same issues that the colonists experienced in the late 1700s are still happening today! Your assignment is to choose two of the grievances to include in your article as if they were still occurring. Your article should show the impact that these grievences have on the citizens today. Be creative! Jake receives a promotion at his law firm after winning an important case. This is an example of a: Group of answer choices Positive informal sanction Negative informal sanction Positive formal sanction Negative formal sanction which is not a run on sentence The executives decided to downsize the company several employees lost jobs.a. The executives decided to downsize the company, several employees lost jobs.b.The executives decided to downsize the company; several employees lost jobs.c. The executives decided to downsize the company several; employees lost jobs.d. The executives decided to downsize the company , several, employees lost jobs. i need geometry help... what is the neural pathway for an automatic, patterned response to a sensory stimulus called? Joe Biden, Pete Buttagieg, Elizabeth Warren and Bernie Sanders were all presidential __________________, running for the political office of President of the United States. Gandhi was trained to be asoldierlawyerpoliticianarbitrator What do we call the repeating units of a larger molecule? Helpful help please How did the opioid epidemic begin?a. Physicians began to increase prescriptions in a sincere attempt to treat patient pain. b. Heroin use demonstrated that it was the best drug to treat pain.c. Synthetic opioids increased overdose deaths.d. None of the above. HELP ASAP!!! NO LINKS PLEASE!!!Compare the diplomatic policies and effects of such ofPresident Roosevelt and President Taft? What key points does President Kennedy make in his "Inaugural Address"? Select all that apply. A) American citizens need to continue seeking unity despite individual differences. B) It is everyone's responsibility to work toward creating a better world for humanity.C) It is everyone's fault that nuclear weapons were invented and many wars fought. D)The American people have nothing to worry about because the government will ensure their safety. The equation of two functions f(x) And g(x) are typed into a graphing calculator to see both graphs on the same coordinate plane. The graphs shown below represents the two functions. Which are approximate solutions of the equation f(x)=g(x) Select all that apply. A. 6B. 0.7C. 0D. 4.6 A chef uses 77 cups of tomatoes per batch to make pasta sauce.Choose the equation that models the situation, where trepresents the number of cups of tomatoes and nrepresents the number of batches of sauce. Lewis wrote an informational academic paper about deer. He rereads his work and is starting to revise for academic voice.Which sentence needs to be revised for an academic voice?The buck, or male deer, is a noble animal that has great speed.Deer enjoy corn, but they get most of their nutrition from grass.Some people think they can tame deer, but I just dont buy it. Deer tend to be extremely nervous and dash away when startled. Which steps are most appropriate for Lorena to take when handling her discussion? Check all that apply.sticking with a decision to avoid risky behaviorhaving a discussion during a sexual situationavoiding distractions during a discussioncommunicating clearly and simplybeing prepared to repeat her message increase R700 in the ratio 3:2 I already know the FEC = 90 but whats ABC