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
How many chromosomes are there in the human ovum?
  • A
    23 pairs
  • B
    46 pairs
  • C
    23.0
    Correct
  • D
    46.0
2
Who is called the father of genetics?
  • A
    Stanley and miller
  • B
    Darwin
  • C
    Gregor Mendel
    Correct
  • D
    Lamarck
3
If a round, green seeded pea plant (RRyy) is crossed with wrinkled, yellow seeded pea plant (rrYY) the seeds to be produced is F, generation will be-
  • A
    Round and green
  • B
    Wrinkled and green
  • C
    Round and yellow
    Correct
  • D
    Wrinkled and yellow
4
The genetic constitution of an organism is called
  • A
    gens
  • B
    phenotype
  • C
    variation
  • D
    genotype
    Correct
5
A trait is an organism is influenced by-
  • A
    Neither maternal nor paternal DNA.
  • B
    Maternal DNA only
  • C
    Paternal DNA only
  • D
    Both maternal & Paternal DNA
    Correct
6
The egg of an animal contains 10 chromosomes, of which one is X – chromosome. How many autosomes would be there in the karyotype of this animal?
  • A
    8.0
  • B
    9.0
  • C
    18.0
    Correct
  • D
    20.0
7
Which of the following traits can be inherited by the progeny of an organism?
  • A
    both height and colour
    Correct
  • B
    height
  • C
    colour
  • D
    weight
8
Statement A : The experience of an individual during its lifetime can be passed on to its progeny. , Statement B : Gregor Mendel was a Botanist
  • A
    Statement B is true, A is false
  • B
    Statement A is true, B is false
  • C
    Neither statement A nor Statement B is true
    Correct
  • D
    Both the Statement A and B are true
9
What will be the sex of the embryo if an egg is fertilized by a sperm having a ‘22 + X’ composition?
  • A
    Neither male nor female
  • B
    Male
  • C
    Female
    Correct
  • D
    can be made or female
10
Which is the genetic material in retrovirus?
  • A
    Both RNA and DNA
  • B
    Neither RNA nor DNA
  • C
    RNA
    Correct
  • D
    DNA
11
Which of the following organism has only one type of sex chromosome called X – chromosome?
  • A
    cricket
    Correct
  • B
    Lizard
  • C
    bee
  • D
    Ant
12
What is the biological name of fruit fly?
  • A
    Panther
  • B
    Pisum sativum
  • C
    Drosera
  • D
    Drosophila melanogaster
    Correct
13
How are the two strands in a DNA molecule held together?
  • A
    phosphate band
  • B
    covalent bond
  • C
    ionic bond
  • D
    Hydrogen bond
    Correct
14
Statement A : Many animal produces two kinds of eggs in different seasons , Statement B : In bees fertilized eggs produce females and unfertilized eggs produce males
  • A
    Both the statements A and B are true
    Correct
  • B
    Neither statement A nor statement B is true
  • C
    Statement A is true, B is false
  • D
    Statement B is true, A is false
15
Which is the most accepted theory of the origin of species?
  • A
    synthetic theory of evolution
    Correct
  • B
    None of these
  • C
    Natural selection
  • D
    genetic variation