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
san4es73 [151]
3 years ago
13

Explain the relationship between crossing over and genetic variation.

Biology
2 answers:
Anon25 [30]3 years ago
8 0

Answer:

Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.

Crossing over results in a new combination of genetic information for the cell for a specific trait.

Crossing over ensures that organisms are not identical from generation to generation.

Genetic recombination allows for a variation in genetic material that is passed through the generations.

Explanation:

mojhsa [17]3 years ago
7 0

Crossing over produces modern combinations of alleles. Not unused alleles but unused combinations which can result in modern phenotypes or expanded assortment of phenotypes. This way the there's expanded genotype/phenotype variety but the genuine qualities are still the same ones.

You might be interested in
How do I know when eclipses occur....please help me
Lady bird [3.3K]
When the sun is cover by the moon
8 0
3 years ago
Read 2 more answers
In a diploid individual, one chromosome carries A and B genes, and the homologous chromosome carries different forms (alleles) o
Helen [10]

Answer:

D

Explanation:

This involves a dihybrid inheritance I.e. two genes are being passed on. During meiosis, specifically, the Prophase stage, homologous chromosomes (similar but non-identical chromosomes received from each parent) line side by side. According to the question, one chromosome contains A and B alleles and its homologue, received by the other parent carries a and b alleles. This means that the diploid individual has a genotype AaBb for that gene.

According to Mendel's law of independent assortment, the alleles separate independently of one another into gametes. I.e. allele A and a separates into the gametes without affecting alleles B and b of the other gene.

Crossing-over, which is the exchange of chromosomal segment occurs between the two homologues. Hence, the exchange of chromosomal segments containing alleles in the individual will possibly produce four gametes with the genotypes: AB, Ab, aB, ab.

4 0
3 years ago
Carol's little brother was at the duck pond in the park. He tried
kati45 [8]

Answer:

O fight or flight

Explanation:

The duck is afraid of Carol's little brother, even though the duck would almost let him get close

7 0
3 years ago
Read 2 more answers
Do penguins have thick skin
Anika [276]

Answer:

yes

Explanation:

it has 2 layers, one fat layer and the other is a feather layer to stay warm

4 0
3 years ago
Choose all the answers that apply. Ecosystems _____. can be small can be large are made of biomes only have living parts have no
Degger [83]

Ecosystems can be large and are made of biomes. Some examples of ecosystems are deserts and forests.

8 0
3 years ago
Other questions:
  • What are the 6 steps of the scientific process
    6·2 answers
  • Allele frequency refers to the fraction of individuals with a particular version of a given gene. What effect does natural selec
    6·1 answer
  • Which of the choices below describes the pathway of cellular respiration (the complete oxidation of glucose)?
    11·1 answer
  • A 2200kg suv hits a wall and goes from 26 m/s to 0 m/s in 0.2 seconds how much force did the driver experience
    11·1 answer
  • __________ involves a rapid loss that occurs just before death. primary aging pathological aging secondary aging tertiary aging
    15·1 answer
  • Which best describes the geologic time scale?
    8·2 answers
  • Who discovered the chemical composition of proteins
    12·2 answers
  • Suppose no crossing - over takes place. explain why meiosis will still increase genetic variation
    9·1 answer
  • Deciduous vegetation can play a large role in building design as a result of its ability to: a. increase interior lighting level
    13·1 answer
  • Which statements best describe the two methods of reproduction?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!