Why Do Offspring Inherit A,a or a Instead of A,a and a,a in Genetic Crosses?

[Medicol]

1. If parents contain Aa and aa for example, then why their division doesn't result in
A,a and a,a but only A,a and a ?

Homework Equations

Nothing related.

The Attempt at a Solution

I don't know

 

[epenguin]

1. If parents contain Aa and aa for example, then why their division doesn't result in
A,a and a,a but only A,a and a ?

Homework Equations

Nothing related.

The Attempt at a Solution

I don't know

No context here to associate a meaning to the question.

At the very least quote the exact question.

Don't know what 'division' means here and anything saying
"doesn't result in A,a... but only A,a and..." sounds like having been garbled.

Sounds like diploid genotypes so what is a?

 

[Medicol]

Thank you, I am asked what genotypes the children may have from such 2 parents. And I wonder why the haploid gamete genotype of the mother (aa) is only a but not a,a.
A, a are dominant and regressive genes.

 

[epenguin]

You may need to read back particularly definitions of the terms. Or http://www.ksu.edu/biology/pob/genetics/defin.htm


This seems now to be about 'haploid genotype'. If the mother (or father) is of is of genotype aa she (or he) can produce only a gametes seems to be all they are saying.

 

[DeeNos]

the context of this question, but it is important to understand that the division of alleles during sexual reproduction is a random process. This means that while the parents may contain the alleles Aa and aa, the resulting offspring may not necessarily inherit both A and a from each parent. Instead, they may inherit either A or a from each parent, resulting in the observed A,a and a,a combinations. This is due to the process of meiosis, which shuffles and separates the alleles during gamete formation. Thus, the resulting division of alleles is a matter of chance and cannot be predicted or controlled.