Question

What is the probability that a gamete from an individual with the genotype E1E2X1X1A1A2M2M2 will contain all paternally derived homologues?

1/6

1/4

1/16

1/8

Answer 1

c). 1/16

The genotype of the gamete is, "E1E2X1X1A1A2M2M2," which contains four pairs of chromosomes. During the metaphase, the maternally derived and the paternally derived chromosomes align at the metaphase, so each gamete contains 50% chance of receiving either the maternally derived or the paternally derived chromosomes.

Thus, the probability that a gamete will contain all paternally derived chromosomes is, (1/2)^n, where n = number of chromosomes. So, 1/2^4 = 1/16.