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A chromosomal translocation between two chromosomes rearranges a standard karyotype of AB*CDEF & *MNOPQ to the...

A chromosomal translocation between two chromosomes rearranges a standard karyotype of AB*CDEF & *MNOPQ to the translocated AB*MNOPQ & *CDEF (* indicates a centromere). Diagram how these chromosomes would pair in meiosis in an individual heterozygous for the translocation. What are the genotypes of the gametes that would be produced by adjacent and alternate segregation?

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Answer #1

Adjacent 1 - Meiotic products are duplicated and deficient for different region and are inviable

Adjacent 2 - Homologous centromere migrate to the same pole

Alternate - Both normal and translocated segregate

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Answer #2

Alternate segregation:

Thus, the gametes produced after alternate segregation are AB*CDEF, *MNOPQ, and AB*MNOPQ, *CDEF.

The gametes produced after adjacent segregation I are AB*MNOPQ, *MNOPQ and AB*CDEF and *CDEF.

The gametes produced after adjacent segregation II are AB*MNOPQ, AB*CDEF and *MNOPQ, *CDEF.

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