Explain the statements :
a. Test cross is back cross but back cross
is not necessarily a test cross.
b. Law of dominance is not universal.
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a Testcross is a crossing of a F1 hybrid with one of its recessive parent or individual with similar genetic makeup. ... - But if back cross involves crossing of F1 generation with dominant parent, it's not a test cross. - Therefore, test cross is a backcross but back cross is not necessarily a test cross. b.The blending of inheritance may occur in several crosses which does not follow the law of dominance. Co-dominance may occur when two dominants come together. ... Hence, it is not necessary that dominance will occur in every cross. So the law of dominance can not be accepted universally
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