The physical cause of the law of independent assortment for genes on the same chromosome is which of the following? Group of answer choices A. crossing over B. separation of homologous chromosomes in mitosis C.separation of sister chromatids in mitosis D. separation of sister chromatids in meiosis E. separation of homologous chromosomes in meiosis
The physical cause of the law of independent assortment for genes on the same chromosome is which of the following?
Answer: The answer is E) Separation of homologous chromosomes in Meiosis.
It is known that, in an organism, the two different alleles(for example a 'R' and a 'r') are present at the same location on the two chromosomes of a homologous pair. Homologous chromosomes are similar that an organism gets one from each one of its parents.
When Meiosis I happens (Metaphase I of Meiosis I, to be exact), in order to achieve gamete formation, the homologous pairs gets oriented in a random order at the center of the cell. Then, they prepare and begin to separate from each other. It ensures that we can get gametes with different combinations of alleles passed on to us from our parents(because of the randomness).
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