Class 10 How Do Organisms Reproduce CBSE Questions & Answers

Class 10 · How Do Organisms Reproduce

This is online test 01 for CBSE class 10 Science How do Organisms Reproduce.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
How many chromosomes are present in a ovum of human being?
  • A
    46 chromosome
  • B
    23.0
    Correct
  • C
    46 pair
  • D
    23 pairs
2
Which vegetative part is used in the propagation of bryophyllum?
  • A
    petal
  • B
    leaf
    Correct
  • C
    stem
  • D
    root
3
Which of the following plant is unisexual?
  • A
    Hibiscus
  • B
    water melon
    Correct
  • C
    Mustard
  • D
    All of these
4
The specific scientific term for the release of ovum from ovary into body cavity is
  • A
    ovulation
    Correct
  • B
    Menopause
  • C
    menstrual cycle
  • D
    puberty
5
How many male gametes are released into the embryo sac?
  • A
    4.0
  • B
    3.0
  • C
    1.0
  • D
    2.0
    Correct
6
Name the body parts which human beings can regenerate.
  • A
    liver lungs
  • B
    lung, nails
  • C
    hair liver
  • D
    hair nails
    Correct
7
Which of the following is not hermaphrodite?
  • A
    bee
    Correct
  • B
    starfish
  • C
    earthworm
  • D
    leech
8
Which of the following is incorrect about self pollination?
  • A
    the genetic drifts of the breed can be removed
    Correct
  • B
    It helps to preserve the parental characters
  • C
    repeated self pollination leads to loss of vigour and vitality of species
  • D
    New varieties cannot be obtained by self pollination
9
Epididymis is the reproductive organ of
  • A
    both male and female
  • B
    female of bull
  • C
    male
    Correct
  • D
    female
10
Oospores is
  • A
    triploid
  • B
    tetraploid
  • C
    haploid
  • D
    diploid
    Correct
11
Which of these can undergo regeneration?
  • A
    spirogyra
  • B
    All of these
    Correct
  • C
    flatworm
  • D
    tapewprm
12
Which of these is not a sexually transmitted diseases?
  • A
    Gonorrhoea
  • B
    Typhoid
    Correct
  • C
    Syphilis
  • D
    AIDS
13
Which of the following is found in males?
  • A
    Labia majora
  • B
    Graafian follicle
  • C
    Leydig cells
    Correct
  • D
    Corpus luteum
14
In roses the method commonly used to produce new plants is
  • A
    bud grafting
  • B
    Layering
  • C
    cutting
    Correct
  • D
    tissue culture
15
At the Time of entering into ovule, the pollen tube has
  • A
    one gamete nucleus
  • B
    three male nuclei
  • C
    two male nuclei
    Correct
  • D
    four male gamete