The question is one of a dihybrid cross.
The picture that I attach below is a punnett cross of the parents (Yy Tt and Yy Tt).
So first you have to separate the two parents into gametes by pairing the alleles ( Yt , YT, yT, yt). Then I crossed then with the punnett square and from that we see that there are
two possible off spring that will would possess the genotype Yy TT (shaded gray in the diagram).
Thus the probability that a Yy TT offspring would be 2 out of 16
=

=

= 12.5 %
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Answer:
six-finger allele
Explanation:
A dominant allele is the copy of a gene located at a locus on a chromosome, whose phenotype is often expressed in the presence of the other copy of a gene in an individual. It is the allele of a gene of that override the effect of the other copy of the gene. It is dominant over the other. The other copy of the gene that it dominates is the recessive allele.
The six-finger allele that expresses itself in the same individual in the presence of the five-finger allele is the dominant allele. The five-finger allele is the recessive allele.
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