Assertion and Reason Type. Assertion [A] : Mendel’s law of independent assortment the genes for each character separate and enter the gametes independently of the genes of the others characters. Reason [R] : Closely located genes assort independently.
[A] is correct but [R] is not correct
Mendel's law of independent assortment, drawn from his dihybrid crosses, states that the alleles of one character separate and pass into gametes independently of the alleles of other characters.
So the assertion is a correct statement of the law. It holds for genes located on different chromosomes or far apart on the same chromosome.
The reason is incorrect: genes located close together on the same chromosome are linked and tend to be inherited together. They do not assort independently, which is the basis of linkage discovered by Morgan.
Hence, [A] is correct but [R] is not correct.
Important Questions from Genetics and Evolution
Which one of the following is a nonsense codon in universal code?
Which base of a codon is called wobble base?
How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
Pair of genes that occupy a specific location on a particular chromosome and control the same trait is termed as _________.
Who synthesize the first artificial gene-
