Question

Given below are two statements:
Statement I: Term heterosis was first used by Shull (1914) and is defined as the superiority of an \(F_1\) hybrid over both its parents in terms of yield and some other characters.
Statement II: Genetic basis of heterosis is explained by two main theories namely dominance hypothesis and over dominance hypothesis.
In light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are correct
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Hint:

Heterosis is the basis of the commercial hybrid seed industry. Remember: Shull = Term "Heterosis" (1914); Davenport = Dominance Hypothesis; East and Shull = Overdominance.

Answer 1

The Correct Option is A