Question

Which of the following statements is incorrect?

• A. Characters are controlled by factors
• B. Factors are discrete
• C. In pea, factors are in pairs
• D. Alleles blend with each other

Hint:

Mendel’s experiments rejected blending inheritance and supported particulate inheritance.

Answer 1

The Correct Option is D

Step 1: Mendel’s principles.
Mendel proposed that characters are controlled by discrete units called factors (now known as genes). These occur in pairs in organisms.
Step 2: Blending inheritance concept.
Mendel disproved blending theory. Alleles do not mix permanently but segregate and retain their identity.
Step 3: Analyzing options.
(A) Correct — Characters are controlled by factors.
(B) Correct — Factors are discrete.
(C) Correct — In peas, factors are in pairs.
(D) Incorrect — Alleles do not blend but segregate independently.
Step 4: Conclusion.
Thus, the incorrect statement is Alleles blend with each other.