Single Answer MCQ
Q-00019404
What is the primary source of genetic variation in sexual reproduction?
1
Asexual division
2
Gene mutation
3
Meiosis and fertilization
4
Cloning
Answer and Solution
Answer
C. Meiosis and fertilization
Solution:
In sexual reproduction, genetic variation is primarily generated through the processes of meiosis and fertilization. During meiosis, chromosomes are shuffled and separated, creating unique gametes. When these gametes unite during fertilization, they form a zygote with a new genetic composition.
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