CBSE Class 12 Biology Principles of Inheritance and Variation Quiz 3

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CBSE › Class 12 › Biology › Principles of Inheritance and Variation

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1. When F

A Dominance B Blended inheritance C Law of segregation D Law of independent assortment

2. Mendel’s formulated the law of purity of gametes on the basis of:

A Test cross B Back cross C Monohybrid cross D Dihybrid cross

3. tt mates with Tt. What will be characteristic of offspring:

A 75% Ineffective B 50% Uneffective C 25% Uneffective D All Effective

4. Failure of segregation of chromatids during cell division Cycle result in the gain or loss of a cromosome (s) is called :

A Female heterogamety B Male heterogamety C Aneuploidy D None of these

5. Exception of Mendel’s law is:

A Dominance B Purity of gametes C Linkage D Independent assortment

6. Haemophilia is a:

A Mendelian disorder B Chromosomal disorder C Can be (a) or (b) D None of these

7. Down’s syndrome is a:

A Mendelian disorder B Chromosomal disorder C can be both D None of these

8. Mendel worked on :

A Edible pea B Wild pea C Garden Pea D None of these

9. A gamete contains which of the following :

A Both alleles of a gene B Only one allele of a gene C Al allele of a gene D No allele

10. Name the scientist who discovered the law of Heredity :

A Gregor Mendel B Newton C Piinnett D None of these

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