Question

On which of the following condition the law of independent assortment can apply?

• A. Two genes on different chromosomes
• B. Two genes on the same chromosomes
• C. Two alleles on different chromosomes
• D. Two alleles on the same chromosome
• E. Two chromosome strands

Answer 1

Answer: (A)

Two genes on different chromosomes

Law of independent assortment tells about segregation and distribution of factors governing two different traits. This makes option C and D incorrect. Tendency of closely placed genes on a chromosome to stay together during inheritance i.e. linkage and therefore no independent assortment make the linked traits exception to law of independent assortment. Option B is incorrect. To exhibit law of independent assortment, two genes should be present distantly on one chromosome or should be present on two different chromosomes only. Correct answer is A.