Question

Genetic maps are based on recombination frequencies. However, because some multiple crossovers produce parental rather than recombinant gametes, as the physical distance between two loci increases, the maximum recombination frequency levels off at 50?

Answer 1

Recombination frequencies in genetic maps level off at 50% as the physical distance between two loci on a chromosome increases.

Step-by-step explanation:

Genetic maps are based on recombination frequencies, which are used to determine the distance between two loci on a chromosome. As the physical distance between two loci increases, the maximum recombination frequency levels off at 50%. This is because beyond a certain distance, multiple crossovers are more likely to produce parental gametes instead of recombinant gametes. Therefore, the recombination frequency levels off at 50%.