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4.Principles of Inheritance and Variation
medium
The phenotype of an individual may be affected if the modified allele produces
$(a)$ No enzyme at all
$(b)$ The normal/less efficient enzyme
$(c)$ $A$ non-functional enzyme
A
Only $(a)$ is correct
B
$(a)$ and $(c)$ are correct
C
$(b)$ and $(c)$ are correct
D
Only $(c)$ is correct
Solution
Recessive allele may not produce enzyme or may be non functional enzyme.
Standard 12
Biology
