Gametic diversity. a) A diploid cell with two chromosome types, so 2n = 4, under

Question

Gametic diversity.

a) A diploid cell with two chromosome types, so 2n = 4, undergoes meiosis. Assuming that meiosis proceeds normally and that chromosomes assort independently, but assuming that there is no recombination, how many different types of gametes are possible? That is, how many different chromosome combinations are possible for the gamete? _______________

b) Answer the same question as in a) but this time assume that 2n = 8. How many different chromosome combinations are possible for a gamete? _____________________________

Explanation / Answer

Answer.

a).

Number of gametes= 2^n

n=number of haploid chromosome number.

2n= 4

n=4/2= 2

Number of different types of gametes from diploid Condition= 2^2= 4

b).

2n= 8

n= 8/2= 4

Number of different types of gametes from tetraploid = 2^4= 16

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