Question

In general, the frequency of crossing over between two linked genes depends on what?

How far apart they are on the chromosome
The characteristics that the genes code for
Whether the genes are dominant or recessive
The phase of meiosis in which the crossing over occurs

Answer 1

Crossovers during meiosis happen at more or less random positions along the chromosome, so the frequency of crossovers between two genes depends on the distance between them.

The closer two genes were to one another on a chromosome, the greater their chance of being inherited together. In contrast, genes located farther away from one another on the same chromosome were more likely to be separated during recombination.

Answer 2

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If two genes are far apart, for example at opposite ends of the chromosome, crossover and non-crossover events will occur in equal frequency. Genes that are closer together undergo fewer crossing over events and non-crossover gametes will exceed than the number of crossover gametes.