How many different gamete types can an individual with genotype aabbccdd make?

how many different gamete types can an individual with genotype aabbccdd make?

How many different gamete types can an individual with genotype aabbccdd make?

Answer: To determine the number of different gamete types that an individual can produce, we look at the genotype and consider the genetic combinations that can be passed on through gametes.

For a genotype like aabbccdd, each gene pair (aa, bb, cc, dd) is homozygous, meaning both alleles are the same. When a gene pair is homozygous, only one type of allele can be passed on to the gametes from that gene pair.

Here’s the breakdown:

  • Gene pair aa can only contribute a.
  • Gene pair bb can only contribute b.
  • Gene pair cc can only contribute c.
  • Gene pair dd can only contribute d.

Since each gene pair contributes only one possible type of allele, there is only one combination that can be produced: abcd.

Thus, the individual with the genotype aabbccdd can make only one type of gamete.

Summary: An individual with the genotype aabbccdd can produce only one type of gamete, abcd, because each gene pair is homozygous and contributes only one allele type.