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Principles of Inheritance and Variation: Class-XII


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NEET PYQs on Principles of Inheritance and Variation: Class-XII


Match List I with List II:

List-I List-II
A. Two or more alternative forms of a gene I. Back cross
B. Cross of F1 progeny with homozygous recessive parent II. Ploidy
C. Cross of F1 progeny with any of the parents III. Allele
D. Number of chromosome sets in plant IV. Test cross
Choose the correct answer form the options given below:

NEET-2024 [Principles-of-Inheritance-and-Variation] [class-xii ]

  • A-II, B-I, C-III, D-IV
  • A-I, B-II, C-III, D-IV
  • A-IV, B-III, C-II, D-I
  • A-III, B-IV, C-I, D-II
    • Correct Option: D  [ A-III, B-IV, C-I, D-II ]

    Remark: Explanation: NCERT Page no. 70, 72, 74 (Topics-5.1 MENDEL'S LAWS OF INHERITANCE, 5.2 INHERITANCE OF ONE GENE )

Which one of the following can be explained on the basis of Mendel's Law of Dominance?

A. Out of one pair of factors one is dominant and the other is recessive.
B. Alleles do not show any expression and both the characters appear as such in F2 generation.
C. Factors occur in pairs in normal diploid plants.
D. The discrete unit controlling a particular character is called factor.
E. The expression of only one of the parental characters is found in a monohybrid cross.

Choose the correct answer from the options given below:

NEET-2024 [Principles-of-Inheritance-and-Variation] [class-xii ]

  • A, C, D and E only
  • A, B and C only
  • A, B, C, D and E
  • B, C and D only
    • Correct Option: A  [ A, C, D and E only ]

    Remark: Explanation: NCERT Page No.59,(Topic-4.2.1 Law of Dominance)
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