Question

If segregation of alleles does not occur during meiosis, which of the following will occur as a result?

• A. Diploid gametes would result.
• B. Gametes with one half of a homologous pair of chromosomes.
• C. Crossing over between homologous pairs will not occur.
• D. The chromosomes would demonstrate linkage.
• E. The crossover percentage would be very small.

Answer 1

Answer: (A)

Diploid gametes would result.

A gene has two alleles. Alleles are the different molecular forms of a gene. Alleles assort independently during gamete formation i.e. they segregate. If segregation doesn't occur, then one of the gametes will have both the alleles and the other will receive no allele. This will produce a diploid gamete and a gamete with allele.

So, the correct answer is 'Diploid gametes would result'.