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Linkage and Recombination

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Animation: Linkage and recombination

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Animation Assessment

Question 1 of 5

Which of the following is false for this image? The image above shows a pair of:

Question 1 choicesChoice A., homologous chromosomes.Choice B., chromosomes containing the same genes.Choice C., chromosomes containing the same genes but different alleles of the genes.Choice D., duplicated homologous chromosomes.Choice E., duplicated nonhomologous chromosomes.

Correct.

Incorrect.

Question 2 of 5

This image shows a pair of linked genes with alleles A and B linked on one of the homologues and alleles a and b linked on the other.

Question 2 choicesChoice A., trueChoice B., false

Correct.

Incorrect.

Question 3 of 5

During which phase of meiosis do homologous chromosomes synapse with crossing-over between homologous chromosomes?

Question 3 choicesChoice A., prophase IChoice B., prophase IIChoice C., both prophase I and prophase IIChoice D., neither prophase I nor prophase II

Correct.

Incorrect.

Question 4 of 5

Which of the following is least likely to produce recombinant chromosomes?

Question 4 choicesChoice A., crossovers between homologous chromosomesChoice B., crossovers between non-sister chromatidsChoice C., crossovers between sister chromatids

Correct.

Incorrect.

Question 5 of 5

Fill in the blank: The BLANK two loci are on a chromosome, the more likely they will be separated by crossover events during gamete formation, and thus the frequency of recombination between loci on a chromosome can be used to measure the BLANK between those loci.

Question 5 choicesChoice A., farther apart; genetic distanceChoice B., farther apart; number of crossoversChoice C., closer together; genetic distanceChoice D., closer together; number of crossovers

Correct.

Incorrect.

Assessment Summary

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