Now, suppose that the three tomato genes from part a did not assort independently, but instead were linked to one another on the same chromosome. would you expect the phenotypic ratio in the offspring to change? if so, how?

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Biology

Terrence Schmitt

14 December, 01:42

Now, suppose that the three tomato genes from part a did not assort independently, but instead were linked to one another on the same chromosome. would you expect the phenotypic ratio in the offspring to change? if so, how?

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Harvey · Answer 1

All eight possible phenotypes could occur, but a greater proportion of the offspring would have the parental phenotypes.

Because all three genes are linked, it is more likely that the parental allele combinations would stay together rather than be recombined through a crossover event. That is why a greater proportion of the offspring would have parental phenotypes. Nevertheless, some crossing over would likely occur, which is why a small proportion of the offspring would have recombinant phenotypes.