Class 10 Heredity And Evolution CBSE Questions & Answers

Class 10 · Heredity And Evolution

Class 10 Heredity and Evolution CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Name the organ analogous to the wing of bird.
  • A
    forelimb of human
  • B
    None of these
  • C
    wings of bat
  • D
    wings of insect
    Correct
2
What are the carriers of factor?
  • A
    DNA
  • B
    chromosomes
    Correct
  • C
    alleles
  • D
    genes
3
Which plant was chosen by Mendel to work upon?
  • A
    rose
  • B
    Gram
  • C
    All of these
  • D
    pea
    Correct
4
Which of these is a fossil that had wings and teeth?
  • A
    Equus
  • B
    Bird
  • C
    Reptile
  • D
    Archaeopteryx
    Correct
5
‘The use and disuse of an organ by an organism leads to acquiring ‘variation’ in the features of that organ’ was proposed by
  • A
    Darwin
  • B
    Jean Baptist Lamarck
    Correct
  • C
    Gregor Mendel.
  • D
    Weismann
6
One of the examples of two analogous organs can be the wing of parrot and
  • A
    Front leg of frog
  • B
    Foreleg of horse
  • C
    wing of housefly ]
    Correct
  • D
    Flipper of whale
7
Find the correct statement
  • A
    the wing of a bird and the bat are homologous organs
  • B
    chromosomes are the bearers of hereditary factors.
    Correct
  • C
    J. B. S Haldane, suggested that life have evolved from the simple organic molecules
  • D
    A child who inherits an X – chromosomes from his father will be a boy
8
Branch of study which deals with the fossils is called as
  • A
    Botany
  • B
    chonchology
  • C
    zoology
  • D
    paleontology
    Correct
9
Variations that result from factors such as climate, food supply and actions of other organisms are called as
  • A
    Genetic
  • B
    both Genetic and somatic
  • C
    none of these
  • D
    somatic
    Correct
10
Name the chromosomes that possess the gene for maleness and femaleness in humans
  • A
    sex ctromosomes
    Correct
  • B
    None of these
  • C
    somatic ctromosomes
  • D
    Autosomes
11
Darwin made an extensive study of the flora and fauna in _______________ islands of south America
  • A
    Bost
  • B
    host
  • C
    coast
    Correct
  • D
    most
12
Statement A : genetic recombination is one of the source of variation , Statement B : Natural selection may lead to the evolution of a new group
  • A
    Neither statement A nor Statement B is true
  • B
    Both the statement A and B are true
    Correct
  • C
    Statement A is true, B is false
  • D
    Statement B is true, A is false
13
Statement A : organisms which are more distantly related will accumulate a lesser number of differences in their DNA. , Statement B : Evolution cannot be said to ‘progress’ from ‘lower’ forms to ‘higher’ forms.
  • A
    Statement B is true, A is false
    Correct
  • B
    Statement A is true, B is false
  • C
    Neither statement A nor B is true
  • D
    Both the statement A and B are true
14
How many copies of genes, the sexually reproducing individuals have for the same trait?
  • A
    4.0
  • B
    2.0
    Correct
  • C
    3.0
  • D
    10.0
15
Which of the following was not the out come of Mendel’s experiments?
  • A
    Independent assortment
  • B
    segregation of factors
  • C
    Dominant traits
  • D
    Factors reside in chromosomes
    Correct