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AP Biology Practice Questions

Category - Biology

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A scientist performing genetic experiments observed that the two alleles for a particular gene were splitting between two gametes during meiosis. What is this called?

Segregation
Dominance
Recessive
Independent assortment
Allele frequency

Explanation

Answer: A, The observation that two alleles of a gene are split between two gametes during meiosis is indicative of the Law of Segregation.

Key Takeaway: The Law of Segregation is a key concept in Mendelian inheritance. It explains how alleles are inherited from each parent. During meiosis, paired chromosomes are split between two gametes, with one copy of each gene going to each gamete. As a gamete from one parent fuses with the gamete of another, the fetus will not inherit a copy of a gene from each parent.

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