Practice Genetics Problems -Set I (2017) 6. An organism has a diploid number of

Question

Practice Genetics Problems -Set I (2017) 6. An organism has a diploid number of 4, as shown below in a cell in Metaphase I of Meiosis where the homologous pairs of chromosome are aligned in the middle of the cell. Assume that each of the large chromosomes has a different allele for a given gene, B or b, as shown. Also assume that each of the smaller chromosomes has a different allele for a given gene, E or e, as shown. Calculate and show the probability of generating each of the possible combinations of these alleles (AB, Ab, aB, aa) in an ovum. Hint: This problem is very Similar to Question #3 under Insights and Solutions in your textbook (solution on p.37). From Dad From Mom

Explanation / Answer

ANSWER: DIPLOID number is 2n= 4; n-=2

possible combinations = 42 = 16

probability of getting each of possible outcome as in an ovum is = 2/4 = 1/2

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