Introduction Test

Introduction

This is online test 02 for CBSE class 12 Biology Reproduction in Organism (Introduction).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
The degenerative and irreversible changes in the organism is known as
  • A
    Ageing
  • B
    Degradation
  • C
    Senescence
    Correct
  • D
    Maturation
2
In diploid organism, gametes are produced by meiosis division but in haploid organism gametes are produced by
  • A
    Reduction division
  • B
    Mitosis
    Correct
  • C
    Meiosis
  • D
    Both a and b
3
Parthenogenesis is the development of unfertilized ovum into a fully formed haploid organism. Natural parthenogenesis is found in
  • A
    House fly
  • B
    Lizards
  • C
    Frogs
  • D
    Honey bee
    Correct
4
Apomixis means
  • A
    Sexual reproduction
  • B
    Formation of seeds without fusion of gamete
    Correct
  • C
    Formation of seedless fruit
  • D
    Vegetative propagation
5
Senescence in most of the animals is not caused by
  • A
    Wear and tear
  • B
    Genetic damage
  • C
    Loss of metabolism
  • D
    Lack of Nutrition
    Correct
6
How organism reproduce, depends upon-
  • A
    Habitat and internal physiology
    Correct
  • B
    Availability of food and choice of organism
  • C
    Morphology and anatomy
  • D
    Habitat and mode of nutrition
7
Which of the following organism has longest life span?
  • A
    Dog
  • B
    Parrot
    Correct
  • C
    Elephant
  • D
    Cow
8
No individual is immortal except
  • A
    Human beings
  • B
    Tortoise
  • C
    Single celled organisms
    Correct
  • D
    Multicellular organisms
9
Vegetative reproduction is a type of
  • A
    Parthenocarpy
  • B
    Asexual reproduction
    Correct
  • C
    Apomixis
  • D
    Sexual reproduction
10
Assertion: Reproduction is essential for continuation of species. Reason: Organisms cannot survive without reproduction.
  • A
    Both assertion and reason are correct.
  • B
    Assertion is correct but reason is incorrect.
    Correct
  • C
    Both assertion and reason are incorrect.
  • D
    Assertion is incorrect but reason is correct