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How does sexual reproduction lead to genetic variation in humans?
Wiki User
∙ 12y ago
At prophase I in meiosis the process of independent orientation of chromosomes takes place. Simplified example; one way or the other of the two ways this process take place.
XX
YY
or
XY
YX
Then in this same phase their is crossing over where the male and female chromosomes exchange parts of their chromosomes with each other.
Finally, with all these variations of gametes, there is random fertilization where any two male and female gametes join together to form a zygote.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agobecause of the mix of genes that are mixed while fertilizing happens.
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Which of these is the major difference between asexual and sexual reproduction in sea stars?
There is genetic variation in the sea stars as a result of sexual reproduction.
Sexual reproduction evolved before the evolution of?
Multicellular organisms
What is the difference between sexual reproduction and genetic variation?
There is no difference. Sexual reproduction is a source of genetic variation. Because during sexual reproduction within humans, a sperm cell and egg, each consisting of different genetic codes, combine to form a completely different DNA. Immediately, a genetic variation occurs between the parents and the offspring because of the union of the gamete cells, a sperm and egg.
An advantage of sexual reproduction is?
An advantage of a sexual reproduction is that it is able to produce more offspring because of the mate. Children are different from the parents and more genetic variation species.
Evaluate the significance of mutations and repair of mutations to the evolution of sexual reproduction?
evaluate the significance of mutations and repairof mutations to the evolution of sexual reproduction
What are the two main of genetic variation?
In humans? Independent assortment and sexual reproduction
Which describes an advantage of sexual reproduction?
Genetic variation
Which of these is not a source of genetic variation in a population?
The answer is sexual reproduction
Which produces genetic variation asexual or sexual reproduction?
both
Why is sexual reproduction preferable to a species?
It promotes genetic variation.
Why does sexual reproduction provide more opportunities for genetic variation than sexual reproduction?
In sexual reproduction, offspring are not identical to either parent.
What are the two main sources of genetic variation and which of them is more common?
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
Which process is a cause of variation in a species?
Sexual Reproduction Genetic mutation
Which of these is the major difference between asexual and sexual reproduction in sea stars?
There is genetic variation in the sea stars as a result of sexual reproduction.
Which is an activity that increases the genetic variation within a population of earthworms?
sexual reproduction
Other sources of genetic variation in a population are?
Mutations (ubiquitous) and genetic recombination (sexual reproduction only).
Why does sexual reproduction result in genetic variation in a species?
It mixes the chromosomes of the two parents
