One fruit fly is heterozygous for long wings, and another fruit fly is homozygous for short wings. Long wings are dominant to short wings. Using a punnett square, find out what percent of the offspring are expected to have short wings.
Ll x ll gives Ll, Ll, ll, ll
short wings: half of the flies.
To find out what percent of the offspring are expected to have short wings, we can use a Punnett square. The Punnett square is a tool used to predict the possible genetic outcomes of a cross or breeding experiment.
In this case, we have one fruit fly that is heterozygous for long wings (Ll), and another fruit fly that is homozygous for short wings (ll). Long wings (L) are dominant over short wings (l).
To create a Punnett square, we write the possible alleles of one parent on the top row of the square and the alleles of the other parent on the left-hand side. In this case, we write Ll on the top row and ll on the left-hand side.
L l
L LL Ll
l Ll ll
The letters inside the boxes represent the possible combinations of alleles that can be formed when the parents reproduce. Now, we can determine the possible genotypes and phenotypes of the offspring.
In this Punnett square, we can see that 50% of the offspring will have the genotype ll when the parents with genotypes Ll and ll reproduce. This means that 50% of the offspring are expected to have short wings.
To summarize, according to the Punnett square, 50% of the offspring are expected to have short wings.