Chromosomal Theory of Inheritance Video Lessons

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Problem: Independent assortment of chromosomes is a result of A. the random nature of fertilization of ova by sperm.B. the random separation of the sister chromatids to the two daughter cells during anaphase II.C. the random orientation of each homologous pair at the metaphase I.D. the relatively small degree of homology shared by the X and Y chromosomes.E. all of the above

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The law of independent assortment states that a pair of alleles for a gene segregates independently of any other gene. In terms of the actual separation of DNA sequences, this phenomenon is the result of many factors. One of these is the random arrangement of chromosome pairs during metaphase I. During this process, chromosomal crossover can happen. Thus, a random arrangement of the genes would actually allow for more instances of recombination that is quite independent of the other genes.

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Problem Details

Independent assortment of chromosomes is a result of 

A. the random nature of fertilization of ova by sperm.

B. the random separation of the sister chromatids to the two daughter cells during anaphase II.

C. the random orientation of each homologous pair at the metaphase I.

D. the relatively small degree of homology shared by the X and Y chromosomes.

E. all of the above

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