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12th CBSE
IMPORTANT
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Mendel’s Law of independent assortment holds good for genes situated on the

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Important Questions on Principles of Inheritance and Variation

MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 15
In a certain taxon of insects, some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome bearing organisms are
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 17
It is said that Mendel proposed that the factor controlling any character is discrete and independent. His proposition was based on the
EASY
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 18
Which of the following represents a pair of contrasting characters?
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 20
In the F2 generation of a Mendelian dihybrid cross, the number of phenotypes and genotypes are
EASY
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>SELF-ASSESSMENT TEST>Q 1
Segregation of hereditary factors occurs in plants during the process of
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>SELF-ASSESSMENT TEST>Q 5
A pea plant homozygous for axial flowers and constricted pods is crossed with the pea plant homozygous for terminal flowers having inflated pods. Work out the cross up to F1 generation. Show the genotypes of the parents and phenotype and genotype of the progeny.
 
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>SELF-ASSESSMENT TEST>Q 7
How can you say that the sex of a child is determined by the father and not by the mother?
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>SELF-ASSESSMENT TEST>Q 8
Why is haemophilia generally observed in men? Under what condition can women also suffer from this disorder?