Principles of Inheritance and Variation Question 103
103. The allele which is unable to express its effect in the presence of another is called
[1991]
(a) codominant
(b) supplementary
(c) complementary
(d) recessive
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Answer : d
Hints & Solution
(d) The allele which cannot express its effect in the hybrid or in the presence of dominant allele is termed as recessive. It is denoted by small letter.