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In a dihybrid cross between AABB and aabb, the ratio of AABB, AABb, aaBb, aabb in F2, generation is:

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Important Questions on Principles of Inheritance and Variation

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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 2
How many characters of pea pod were chosen by Mendel?
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 3

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The above pedigree chart shows

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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 4
In second division segregation, the arrangement of ascospores of Neurospora is -
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 5

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In the above pedigree chart the genotype of first-generation parent will be-

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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 6
Down's syndrome is due to
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 7
A normal girl has colour-blind brother? Which statement is true?
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 8
2A+ZWQuestion Image-ZZQuestion Image genotype is a type of sex determination found in
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Alpha Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>Exercise-4>Q 9
In dihybrid cross of pea plant what will be the ratio of recombinant types in F2 generation