Question

An inversion, when present in just one of the chromosomes, suppresses:

Options

• mutations

• cross overs

• duplications

• translocations

Answer 1

cross overs

Explanation:

An inversion present in just one of the chromosomes suppresses cross overs during meiosis. This occurs because the chromosome with the inversion forms a loop to align with its normal homolog, which inhibits crossing over within that segment, reducing recombinant offspring. The inversion rearranges the gene sequence but does not cause loss or gain of genetic material, and effectively suppresses cross over events in heterozygous condition.