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Principles of Inheritance
NEET Biology • 10 questions • Free on ExamBattle
Practice Questions
Q1
Mendel's law of segregation states that:
- A. Alleles of different genes assort independently
- B. Paired alleles separate during gamete formation
- C. Dominant alleles mask recessive
- D. Traits are inherited as blends
Q2
In a monohybrid cross of Aa × Aa, the phenotypic ratio in F₂ is:
- A. 1:2:1
- B. 3:1
- C. 1:1
- D. 9:3:3:1
Q3
Colour blindness in humans is an example of:
- A. Autosomal dominant
- B. X-linked recessive trait
- C. Y-linked trait
- D. Autosomal recessive
Q4
The term "codominance" means:
- A. Dominant allele completely masks recessive
- B. Both alleles are expressed simultaneously in heterozygote
- C. Neither allele is expressed
- D. Blending of traits in F₁
Q5
Pleiotropy refers to:
- A. Many genes controlling one trait
- B. One gene affecting multiple traits
- C. Incomplete dominance
- D. Gene linkage
Q6
A test cross is a cross between:
- A. Two F₁ individuals
- B. F₁ individual × homozygous recessive parent
- C. P₁ × P₂
- D. Two homozygous dominants
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