Heridity And Variation Test

Heridity And Variation

This is online test 02 for CBSE class 12 Biology Principles of Inheritance and Variation (Heridity and variation).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
F2 generation is obtained by
  • A
    Crossing of F1 and F2
  • B
    None of these
  • C
    Selfing of F2
  • D
    Selfing of F1
    Correct
2
The title of Mendel’s paper while presenting at Brunn Natural History Society in 1865 was
  • A
    Laws of heredity
  • B
    Experiments on pea plants
  • C
    Experiments in plant hybridization
    Correct
  • D
    Laws of inheritance
3
Dihybrid cross proves the law of
  • A
    Segregation
  • B
    Law of independent assortment
    Correct
  • C
    Purity of gametes
  • D
    Dominance
4
In pea plants, yellow seeds are dominant to green, If a heterozygous yellow seeded plant is crossed with a green seeded plants, what ratio of yellow and green seeded plants would you expect in F1 generation?
  • A
    9:1
  • B
    50 : 50
    Correct
  • C
    3:1
  • D
    1:3
5
In a cross between a pure tall plant with green pod and a pure short plant with yellow pod. How many short plants are produced in F2 generation out of 16?
  • A
    9
  • B
    4
    Correct
  • C
    1
  • D
    3
6
The major reason for the success of Mendelian experiments was
  • A
    Garden pea was cross breeding
  • B
    Garden pea was easily available
  • C
    Garden pea was true breeding
    Correct
  • D
    Garden pea was heterozygous
7
The test cross is used to determine the
  • A
    Phenotype of the plant
  • B
    Both a and b
  • C
    Genotype of the plant
    Correct
  • D
    None of these
8
The number of types of gametes produced by a heterozygous individual is
  • A
    Many
  • B
    2
    Correct
  • C
    1
  • D
    3
9
Which of the following statements are true regarding Law of segregation?
  • A
    The segregation of factors is due to the segregation of chromosomes during meiosis
  • B
    Law of segregation is called as law of purity of gametes
  • C
    All of the above
  • D
    Alleles separate with each other during gametogenesis
    Correct
10
Mendel’s findings were rediscovered by
  • A
    De vries only
  • B
    Tschermak
  • C
    Correns only
  • D
    De vries, Correns and Tschermak
    Correct