The mating of an Aa male and an aa female produced an offspring with the genotype AAa. Therefore, the offspring has 3 copies of

Question

3 years ago

13

The mating of an Aa male and an aa female produced an offspring with the genotype AAa. Therefore, the offspring has 3 copies of

gene 1 (trisomy for Chromosome 1). At what stage during meiosis did the non-disjunction event occur and in which parent?

Biology

1 answer:

blondinia [14] · Answer 1 · 2022-03-10T10:00:00+03:00

Answer:

<em>Ana-phase 1 of Meiosis 1 in Male Parent...</em>

Explanation:

It is clear that meiosis is only happening in male due to AAa nondisjuction of dominant AA from male parent. The disjunction is occuring during spermato-genesis during Ana-phase 1 of Meiosis 1 cause it is only possible explanation of tri-somy at Chromosome 1...