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प्रश्न
What is sexual reproduction? List its four significances.
उत्तर
The type of reproduction which involve two individuals of different sexes (male and female) is known as sexual reproduction.
Significance of sexual reproduction:
(1) It is a source of genetic variation among a population of organisms.
(2) It gives rise to individuals more adapted to the environment.
(3) It helps in survival of species.
(4) It helps in evolution of organisms.
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संबंधित प्रश्न
What are chromosomes?
How do organisms, whether reproduced asexually or sexually maintain a constant chromosome number through several generations? Explain with the help of suitable example.
Internal fertilisation occurs ______.
Characters that are transmitted from parents to offspring during sexual reproduction show :
(a) only similarities with parents
(b) only variations with parents
(c) both similarities and variations with parents
(d) neither similarities nor variations with parents
Multiple choice question. Tick (✓) the correct choice:
Butterfly in its development from larva to an adult shows
- multiplication
- metamorphosis
- fertilisation
- none of the above
Mention the common method of reproduction in Start fish.
In the sexual mode of reproduction, greater diversities are generated.
In an ovule, meiosis occurs in ______
Which of the following is the male accessory gland?
Justify the statement ‘Vegetative reproduction is also a type of asexual reproduction’.
