Question

Which of Thomas hunt morgans hypotheses was valid

Answer 1

Answer;

white eyes are homozygous recessive

Explanation;

• Thomas Hunt Morgan work with the fruit fly showed that genes are linked in a series on chromosomes and are responsible for identifiable, hereditary traits. He was the first to identify that genes are linked to the same chromosome.
• According to his hypothesis he stated that genes that are linked are arranged linearly on a chromosome, while those genes with low combination frequencies must be closer together and thus difficult to separate.
• When a gene contains two similar alleles that is, either two dominant alleles or two recessive alleles then it is called homozygous dominant and homozygous recessive respectively. White eyes of a fruit fly is an example of homozygous recessive

Answer 2

The correct answer is C) White eyes are homozygous recessive in female Drosophila.