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
In this field of sunflowers, variation exists. Some flowers are tall, others short, and finally some plants are an intermediate
Eddi Din [679]

Answer:

c

Explanation:

Sexual: meiosis, crossing over, and random assortment of chromosomes; pollination

5 0
3 years ago
What kind of substances tend to be acidic and what kind of substances tend to be alkaline?
alexandr402 [8]

Answer:

Substances

0 (most acidic) Hydrochloric acid (HCl)

1 Stomach acid

2 Lemon juice

3 Cola, beer, vinegar.

Examples of alkaline are:sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide etc

6 0
3 years ago
X-rays are used during all of the following tests except
notka56 [123]

Answer:

The answer is B

Explanation:

because magnetic resonance imaging is a form of medical imaging that measures the response of the atomic nuclei of body tissues to high-frequency radio waves when placed in a strong magnetic field, and that produces images of the internal organs.

4 0
3 years ago
You should dedicate _______ of your dinner plate to protein-rich foods.
Mrrafil [7]
The ideal serving of protein rich food in a day is up to 2-3 servings or <span> c. 1/3 of your dinner plate. </span>Protein can be found in eggs, poultry, fish, beans, peas, lentils and nuts. The other 2/3 of your plate should include carbs and fruits and vegetables.
3 0
3 years ago
Read 2 more answers
I will Give Brainliest To Whoever Gets This Right!!!!!!!!!!!!!!!!!
patriot [66]

Answer:

It's too hard

Explanation:

do you go to school. What grade/year are you in?

3 0
3 years ago
Other questions:
  • During which period of pregnancy may drug exposure cause meromelia, cleft lip, and enamel hypoplasia?
    9·1 answer
  • How do rootlets affect cause chemical weathering?
    7·1 answer
  • Evaluate three adaptations of insects in terms of role they played in enabling insects to become so diverse and abundant
    8·1 answer
  • In gorillas, the ability to roll the tongue is under the control of 1 gene. The R allele, which confers tongue-rolling ability,
    11·1 answer
  • Who was the first person to come up with the name "cell " ?
    6·2 answers
  • The dna of humans and mice is almost 92% Similar . This similarity indicates that . Nice have a tail , while humans have a tailb
    9·2 answers
  • Как понять последнее предложение?
    8·1 answer
  • What are the three types of RNA?
    14·2 answers
  • I need help with 5-10 please
    5·1 answer
  • What are the metric units for acceleration?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!