Question

During meiosis, crossing over occurs between homologous chromosomes. If two genes, A and B, are located on the same chromosome, and crossing over occurs between them, explain how this process can lead to new combinations of alleles in gametes. Then, if you have a parent with genotype AaBb (where A and B are dominant traits) and crossing over occurs, list the possible gametes that can result from this parent.

Name: during meiosis crossing over occurs between homologous chromosomes if two genes a and b are located on the same chromosome and crossing over occurs between them explain how this process can 15104
Uploaded: 2026-05-06T04:52:51-08:00
Channel: Numerade
Description: during meiosis crossing over occurs between homologous chromosomes if two genes a and b are located on the same chromosome and crossing over occurs between them explain how this process can 15104

          During meiosis, crossing over occurs between homologous chromosomes. If two genes, A and B, are located on the same chromosome, and crossing over occurs between them, explain how this process can lead to new combinations of alleles in gametes. Then, if you have a parent with genotype AaBb (where A and B are dominant traits) and crossing over occurs, list the possible gametes that can result from this parent.

Added by Jesse H.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Leyna Stemle

Step 1

Step 1: Define the situation — AaBb means the individual is heterozygous at two loci (one chromosome pair carries A vs a and the other carries B vs b); A and B are on the same chromosome (linked loci), so allele combinations initially sit together on homologous Show more…

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During meiosis, crossing over occurs between homologous chromosomes. If two genes, A and B, are located on the same chromosome, and crossing over occurs between them, explain how this process can lead to new combinations of alleles in gametes. Then, if you have a parent with genotype AaBb (where A and B are dominant traits) and crossing over occurs, list the possible gametes that can result from this parent.