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Natali [406]
2 years ago
7

In addition to mutations, genetic variation can also arise during the formation of gametes during meiosis. During meiosis I, hom

ologous chromosomes can randomly exchange segments, in a process called crossing-over. This trading changes the order of the genes in the DNA and on the chromosomes. Exchange material is integrated into the rest of the chromosomes DNA. Each chromosome loses some DNA and gains some DNA. As a result, there are more genotypes in the offspring. 2. What function does recombination by crossing-over have in genetic variation
Biology
1 answer:
amm18122 years ago
5 0

Answer:

Crossing over ensures that organisms of the same parents have differences in genetic content making them unique in one way or the other.

Explanation:

This question is describing the process of crossing over, which occurs only during prophase I of meiosis. During the process of crossing over, alleles of a gene are exchanged between non-sister chromatids of homologous chromosomes (mother and father chromosomes).

Hence, a unique GAMETE that has been genetically recombined will be formed. When these gametes are fertilized (egg) or fertilizes (sperm), organisms that are genetically different from their parents are produced. This ensures genetic variation, which is a difference in the genetic content of organisms.

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Prokaryotic cells found in extreme, harsh environments often belong to the domain:
Oksana_A [137]

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Explanation:

Archaea are single celled prokaryotic microorganisms that lack cell nuclei.Archaea are extremophiles that live in extreme high and harsh environments like hot springs and salt lakes.They reproduce asexually by binary fission, fragmentation and budding. They are salt tolerant that use sunlight as energy.

5 0
3 years ago
How do planets and stars differ from one another
Andreas93 [3]
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Which phase of skin regeneration includes migrating epithelial cells beneath the scab, reduced phagocytic activity, and the diss
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3 years ago
Which of the following characteristics do bryophytes share with algae
xxMikexx [17]
The correct answer is letter C.
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3 0
3 years ago
Explain why most mutations in eukaryotes are recessive
Dominik [7]
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