In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings?

Either LL or Ll

Either Ll or ll

Only LL

Only ll

The correct option is A) Either LL or Ll

Explanation:

A dominant allele can be described as the allele which masks the effect of a recessive allele. A recessive allele can be described as the allele which gets suppressed by a dominant allele.

For a dominant trait to occur the organism might be homozygous dominant for the trait or it might be heterozygous for the trait. In the above scenario, the fruit fly will be able to have long wings if it has a dominant genotype i. e LL or a heterozygous genotype i. e Ll.

However, for a recessive trait to occur both the allele will have to be recessive.