Crossing Over and Recombinants Video Lessons

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Problem: Why do mapping experiments become less accurate when the distances between genes become large? A) Crossover gametes become less common. B) Interference is greater when the distance between genes is large. C) Multiple-strand exchanges are more common. D) Recombination occurs less frequently in long chromosomes.

FREE Expert Solution

Recombination Frequency: probability of a cross-over between two genes on the same chromosome

: ranges from 0% to 50%

• 0% means the two genes are close together and are inherited together

• 50% means the two genes are far apart and will assort independently

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Problem Details

Why do mapping experiments become less accurate when the distances between genes become large? 

A) Crossover gametes become less common. 

B) Interference is greater when the distance between genes is large. 

C) Multiple-strand exchanges are more common. 

D) Recombination occurs less frequently in long chromosomes.

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