using the punnet square one trait is Dd and the other is dd.
1) does the mother or father in a have dimples
b) what percentage of children are likely to have dimples
i think for a: it is the father because of the D so that it dominant and
b:50 because two of the kids will have Dd
Right.
thank you
To determine whether the mother or father has dimples based on the given Punnett square, you need to understand how traits are inherited. In this case, dimples are represented by the dominant allele D, and no dimples are represented by the recessive allele d.
The Punnett square shows that one of the parents has the genotype Dd, while the other parent has the genotype dd.
To analyze each parent's genotype for dimples:
a) The parent with the genotype Dd has one dominant allele (D) and one recessive allele (d). This parent is considered heterozygous, meaning they have one allele for dimples and one allele for no dimples. Therefore, this parent has dimples.
b) To determine the percentage of children likely to have dimples, you need to consider the possible combinations of alleles in their offspring. In this case, there are two possible genotypes for the children: Dd or dd.
Using the Punnett square, you can see that there is a 50% chance that each child will inherit the dominant allele (D) from the heterozygous parent and have dimples (Dd genotype). Similarly, there is a 50% chance that each child will inherit the recessive allele (d) from the other parent and not have dimples (dd genotype).
So, the correct answers are:
a) The parent with the Dd genotype (mother) has dimples.
b) 50% of the children are likely to have dimples (Dd genotype), while the other 50% are likely not to have dimples (dd genotype).