Frizzle gene is - Solved MCQ | Agrigyan

Q.98

Poultry Science- ICAR JRF/SRF 2024

MCQ (Single Correct) +4 −1

Frizzle gene is

Completely dominant Incompletely dominant Correct Recessive Co-dominant

Frizzle Gene Genetics in Domestic Fowl:
The frizzle feather trait is governed by an autosomal, incompletely dominant gene ($F$).
Genotypes:
Heterozygotes ($Ff$): Desirable curled, frizzled plumage; provides enhanced heat tolerance without extreme fragility.
Homozygotes ($FF$): Extreme "woolly" brittle feathers that break off easily, leading to almost complete bareness.

Correct option: (2) Incompletely dominant

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