Question

In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)?

Answer 1

Since 4 of the 8 are paternal,

4/8 * 3/7 * 2/6 * 1/5 = ?

Answer 2

can you please explain how you got those numbers.