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URGENT
In a cell with gene for A/a alleles and B/b alleles are on the same chromosomes what
are the possible different kinds of gametes produced by meiosis? Assume one
chromsome has A-B, and other homologous chromosome has a-b and crossing over
occurs.
O Ab
O all of the above
O ab
O ab
O AB

Respuesta :

lhinton1227

Answer:

B

Explanation:

luisvaschetto

In a cell with the gene for A/a alleles and B/b alleles are on the same chromosomes, the possible different kinds of gametes produced by meiosis are Ab, AB, aB and ab (Option all the above).

  • Crossing over, also called recombination, refers to the exchange of genetic material (DNA) between non-sister chromatids during Prophase I (Meiosis I).

  • In this case, assuming crossing over occurs, all gamete combinations are possible.

  • During crossing over, gametes containing linked genes (in this case, A/a alleles and B/b alleles) can interchange chromosomic segments in order to produce different gamete combinations.

In conclusion, in a cell with the gene for A/a alleles and B/b alleles are on the same chromosomes, the possible different kinds of gametes produced by meiosis are Ab, AB, aB and ab (Option all the above).

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