Multiple Choice
What is one advantage of sexual reproduction?
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12. Meiosis
Life Cycle of Sexual Reproducers
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What percentage of DNA comes from each parent during sexual reproduction?
A
75% from the mother and 25% from the father
B
60% from the father and 40% from the mother
C
100% from one parent
D
50% from each parent
Verified step by step guidance1
Understand that sexual reproduction involves the combination of genetic material from two parents, typically a mother and a father.
Recognize that DNA is organized into structures called chromosomes, and humans have 23 pairs of chromosomes.
During sexual reproduction, each parent contributes one set of 23 chromosomes, resulting in the offspring having a total of 46 chromosomes.
Since each parent contributes one set of chromosomes, the genetic material from each parent is equal, meaning 50% of the DNA comes from the mother and 50% from the father.
Therefore, the correct answer is that each parent contributes 50% of the DNA to the offspring during sexual reproduction.
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