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
Black_prince [1.1K]
3 years ago
8

What happens in crossing over? Why is it important for sexually reproducing organisms, and what is one of the consequences of er

rors in crossing over?
Biology
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

Crossing over increases the genetic variation  

Errors in crossover formation result in chromosomal rearrangements (duplications and deletions) and may also cause chromosome nondisjunction

Explanation:

Crossing over, also known as recombination, refers to the exchange of genetic material (DNA) between non-sister chromatids of homologous chromosomes during meiosis. Crossing over increases the genetic variation of the resulting gametes, allowing different genetic combinations to be passed from parents to offspring. Unequal crossing over is a type of error associated with chromosomal duplication and/or deletion events. Unequal crossing over occurs when homologous sequences are not paired precisely. Moreover, errors in crossing over may also cause chromosome nondisjunction, thereby leading to aneuploidies.

You might be interested in
16. What explanation can be used to describe the test tube shown?
elixir [45]

Answer:

Water is polar and oil is nonpolar so the substances won't mix.

Explanation:

Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. oils are nonpolar, so they will remain separate from molecules of a polar solvent such as water.

3 0
3 years ago
The Krebs cycle will not take place if ?
jenyasd209 [6]
If there is ATP and ADP in the Cell Cycle
3 0
3 years ago
A rooster laid an egg on top of the barn roof. Which way did it roll?
docker41 [41]
Roosters don't lay eyes! :P
5 0
3 years ago
Read 2 more answers
Amoebas are unicellular organisms, while human beings are multi-cellular and the most intelligent of organisms. However, both ar
snow_tiger [21]
That is because being prokaryotic or eukaryotic doesn't depend on the size of the organism, but rather on the cellular structure. Both are eukaryotic because they have clearly defined nuclei and functioning organelles that are differentiated, unlike prokaryotic organisms.
8 0
3 years ago
Life is based on cells. What do you think of this statement?​
Diano4ka-milaya [45]

Answer:

what's the statements? can you please post it

3 0
3 years ago
Other questions:
  • Which methods are the most common for dealing with waste
    14·2 answers
  • ________ starts with plants and continues with animal food and human food. Study the food of all species.
    10·2 answers
  • The presence of predators lessens the effects of ( blank )among prey?
    9·1 answer
  • Ciri ciri basidimycota
    14·1 answer
  • How can plate tectonics contribute to evolution?
    8·2 answers
  • Maria wanted to grow a fern in her backyard. Acting on a suggestion from a friend, she collected brown dots from the underside o
    5·2 answers
  • Is mucous an enzyme or harmone​
    12·1 answer
  • PLEASE IM BEGGIN YOU CAN YOU HELP
    10·2 answers
  • Which of these are present in both woody and herbaceous stems? (Select all that apply.)
    7·2 answers
  • The table below shows the depths at which an index fossil and three other fossils were found. Which statement is correct?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!