1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Papessa [141]
3 years ago
13

What function does recombination by crossing-over have in genetic variation?

Biology
1 answer:
Katena32 [7]3 years ago
3 0

Answer: Crossing-over allows the genes that come from each parent to recombine before they are passed on to future generations because chromatids of homologous chromosomes mate and exchange sections of their DNA.

Explanation:

Chromosome crossing-over is the process by which chromatids of homologous chromosomes mate and exchange sections of their DNA during prophase I of meiosis, when pairs of homologous chromosomes, or of the same type, are aligned. The chromatids of the homologous chromosomes break off in the chiasmas and rejoin to allow recombination of the linked genes. So it occurs when regions at chromosome breaks mate and then reconnect to the other chromosome. <u>The result of this process is an exchange of genes, called genetic recombination</u>.

This allows the genes that come from each parent to recombine before they are passed on to future generations. Then, <u>it is an important source of genetic variability</u>, since it involves an exchange of segments between homologous chromosomes during the development of gametes. <u>This process allows that the descendants of an individual are genetically very different</u>, since it is very unlikely that an individual produces two equal gametes, because all of them have different segments of the homologous chromosomes.

You might be interested in
Organisms can adapt
Simora [160]

Selective breeding is something only ascended organisms can adapt to. Us humans use selective breeding. Animals without complex language, artistic capabilities, etc, are unable to adapt to C.

D is your answer.

4 0
3 years ago
Which description identifies a solid?. Single choice.
vredina [299]

Answer:

A. definite volume and definite shape

Mark me as brainliest

5 0
2 years ago
Is unicellular eukaryotic or prokaryotic
Nataliya [291]

Answer:

It's Eukaryotic

Explanation:

8 0
3 years ago
Read 2 more answers
Which is not true about euglena?
RUDIKE [14]
Well, Euglena is in phylum Euglenophyta, and Paramecium is in phylum Ciliophora. You can verify that with a quick Google search. 

<span>Does that sort of narrow it down? :)</span>
4 0
3 years ago
Read 2 more answers
Which series correctly lists the order of species (from a to <br> e. that belong on the timeline?
Ann [662]
What are the species that are labeled a to e?
6 0
3 years ago
Other questions:
  • The nurse is assisting the client in planning care during exacerbations of ménière's disease. which diet would the nurse identif
    12·1 answer
  • How does gulliver treat the lilliputians during the first weeks on the island?
    9·1 answer
  • Researchers are using Antarctica to learn how Earth has changed over thousands of years. Which of the following is not a way res
    6·1 answer
  • Animals store most of their excess energy reserves as _______ because
    5·2 answers
  • Is it true or false
    5·2 answers
  • Read the scenario below and answer the question that follows.
    10·1 answer
  • Glycolysis does not require oxygen<br> and is said to be?
    10·1 answer
  • Please Help! Will give Brainliest!!!<br><br>​
    11·1 answer
  • Which process
    10·2 answers
  • Ya'll ever got a tingly feeling in ya stomach?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!