Principles of Inheritance and Variation - Class XII Biology Quiz

Class XII

Biology

Principles of Inheritance and Variation

14 questions

HARD

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Preview questions

1. What is the phenotypic ratio of a dihybrid cross in F2 generation according to Mendel's laws?

9:3:3:1 · 3:1 · 1:2:1 · 1:1

2. In humans, the ABO blood group is an example of which type of inheritance?

Codominance · Incomplete dominance · Polygenic inheritance · Multiple alleles

3. What does a test cross involve?

Crossing two homozygous individuals · Crossing a homozygous with a heterozygous · Crossing an individual with a recessive phenotype · Crossing two heterozygous individuals

4. Which of the following is not a type of genetic variation?

Mutation · Recombination · Segregation · Transcription

5. What is the expected phenotypic ratio for a monohybrid cross?

1:2:1 · 3:1 · 9:3:3:1 · 1:1

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