Consider a diploid plant with chromosome number $2n=18$. In meiosis, each chromosome pair can produce 5 distinct chromatids (including 3 recombinant and 2 parental). Assuming independent assortment of chromosome pairs, how many genetically distinct haploid gametes can be formed?

Step-by-step solution

1. Chromosome number: $2n=18$ ⇒ $n=9$ chromosome pairs.
2. Each pair yields 5 distinct chromatids.
3. Gamete receives one chromatid from each pair; choices are independent.
4. Total combinations = $5^9$.
5. Compute $5^9=1953125$.

Concept tested: Recombinant gamete calculation

Published 16 October 2026 · How this solution was prepared and checked