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12th CBSE
IMPORTANT
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Person having genotype IAIB would show the blood group as AB. This is because of? 

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Important Questions on Principle of Inheritance and Variation

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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 7
ZZ / ZW type of sex determination is seen in:
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 8
A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 9
In a dihybrid cross, if you get 9:3:3:1 ratio, it denotes that
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 10
Which of the following will not result in variations among siblings?
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 11
Mendel's law of independent assortment holds good for genes situated on the
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 12
Occasionally, a single gene may express more than one effect. The phenomenon is called
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 13
In a certain taxon of insects, some have 17 chromosomes, and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 14
The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in the pedigree analysis is equivalent to