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12th CBSE
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Distance between the genes and percentage of recombination shows

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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 4
If a genetic disease is transferred from a phenotypically normal but carrier female to only some male progeny, the disease is
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12th CBSE
IMPORTANT
NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 5
In the sickle cell anaemia, glutamic acid is replaced by valine. Which one of the following are triplets codes for valine?
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12th CBSE
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NCERT Exemplar Biology - Class 12>Chapter 5 - Principle of Inheritance and Variation>MULTIPLE-CHOICE QUESTIONS>Q 6
Person having genotype IAIB would show the blood group as AB. This is because of? 
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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
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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