Sexual Reproduction Test

Sexual Reproduction

This is online test 04 for CBSE class 12 Biology Reproduction (Sexual Reproduction).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
In non-primitive mammals like cow, sheep, rats, dogs etc., such cyclical changes during reproduction are called
  • A
    Menstrual cycle
  • B
    Growth cycle
  • C
    Gestation period
  • D
    Oestrus cycle
    Correct
2
Spropollenin, an organic material is present in
  • A
    Exine
    Correct
  • B
    Style
  • C
    Intine
  • D
    Stigma
3
Insemination involves
  • A
    Passage of semen into prostate gland
  • B
    Mixing of seminal fluid with sperm
  • C
    Fusion of male and female gamete
  • D
    Release of seminal fluid at the end of copulation
    Correct
4
Sexual reproduction is better mode of reproduction because offspring
  • A
    Are identical to one another
  • B
    Are bigger in size
  • C
    Have better chances of survival
    Correct
  • D
    Faster mode of reproduction
5
Ovulation in the females normally takes place during the menstrual cycle
  • A
    In the middle
    Correct
  • B
    Just before the start
  • C
    At the beginning
  • D
    At the end
6
Which of the following is prevented by unisexuality
  • A
    Autogamy but not geitonogamy
    Correct
  • B
    Geitonogamy but not xenogamy
  • C
    Both xenogamy and geitonogamy
  • D
    Autogamy and geitonogamy
7
Which one of the following pairs of plant structure has haploid number of chromosome?
  • A
    Egg nucleus and secondary nucleus
  • B
    Nucellus and antipodal cells
  • C
    Megaspore mother cell and antipodal cell
  • D
    Egg and antipodal cells
    Correct
8
Flower with ovaries having only one or few ovules are generally pollinated by
  • A
    Butterflies
  • B
    Bees
  • C
    Wind
    Correct
  • D
    Birds
9
Arrange the following in order of their occurrence in plants
  • A
    fertilization, pollination Syngamy, embryogenesis
  • B
    pollination, Syngamy, fertilization, embryogenesis
    Correct
  • C
    Syngamy , pollination, embryogenesis, fertilization
  • D
    Pollination, embryogenesis, fertilization, Syngamy
10
Cleavage include the rapid mitotic division of zygote to form a single layered hollow spherical structure called
  • A
    Parturition
  • B
    Marula
  • C
    Gastrula
  • D
    Blastula
    Correct