Linkage · Botany

Interference is a phenomenon where:

  1. One gene completely suppresses the phenotypic expression of another nearby gene.
  2. Two chromosomes fail to separate during anaphase.
  3. DNA polymerase makes an error during replication.
  4. A crossover in one region inhibits a second crossover nearby.
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Correct answer: A crossover in one region inhibits a second crossover nearby.

Chromosomal interference occurs when the occurrence of one crossover reduces the probability of another crossover happening in the adjacent region of the same chromosome.

Difficulty: Medium Question 17 of 20

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