- A One extra chromosome appearing in both resulting gametes
- B Gametes with both homologs or neither (n+1 and n-1)
- C Largely normal gametes with the correct chromosome number
- D Mainly a single chromosome remaining per resulting cell
Correct answer: B. Gametes with both homologs or neither (n+1 and n-1)
Explanation: Nondisjunction at Meiosis I: both homologs go to same cell. Results in n+1 and n-1 gametes. Leads to monosomy or trisomy.
Concept context
Mitosis and meiosis: how cells divide for growth, repair, and reproduction.