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प्रश्न
In the sexual mode of reproduction, greater diversities are generated.
विकल्प
True
False
उत्तर
In the sexual mode of reproduction, greater diversities are generated: True
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संबंधित प्रश्न
Which mode of reproduction gives rise to variation?
Give the importance of variation in survival of species.
List six specific characteristics of sexual reproduction.
List three distinguish features between sexual and asexual types of reproduction, in tabular form.
Define Senescent phase.
What is amphimixis?
Describe the process of fertilisation in human beings.
A zygote is formed as a result of fertilisation.
Give two differences between a zygote and a foetus.
Differentiate between internal fertilization and external fertilization.
What is the other name of sex cells?
The correct sequence of organs in the male reproductive system for the transport of sperms is:
(a) testis → vas deferens → urethra
(b) testis → ureter → urethra
(c) testis → urethra → ureter
(d) testis → vas deferens → ureter
One of the following process does not lead to the formation of clones. This is :
(a) fission
(b) fertilisation
(c) fragmentation
(d) tissue culture
Define the term Fetilization.
Define the term Implantation.
Multiple choice question. Tick (✓) the correct choice:
Butterfly in its development from larva to an adult shows
- multiplication
- metamorphosis
- fertilisation
- none of the above
Multiple choice question. Tick (✓) the correct choice:
Which of the following glands is responsible for bringing about changes during adolescence in boys and girls?
- pituitary
- adrenal
- thyroid
- testis
Differentiate between the following:
External fertilisation and Internal fertilisation.
Mention the changes which occur during adolescence in humans.
Answer the following question.
Explain the following parts of male reproductive system along with labelled diagram showing these parts- Testis, vasa deferentia, epididymis, seminal vesicle, prostate gland and penis.
Long answer question.
Describe female reproductive system of human.
What is atresia with respect to ovary in human females?
Give an account of external genitalia in human females.
Choose the correct statement from the following
Name the phenomenon where the female gamete directly develops into a new organism with an avian example.
Due to presence of which of the following chemical component, pollen grains can remain well preserved in fossil?
Testosterone is produced by ____________.
Which of the following is the male accessory gland?
Oestrus cycle is seen in ______.
Name the two ways by which fertilisation in animals takes place.
What are oviparous animals?
Explain the two types of fertilization.
Sexual reproduction is characterized by ______
'Fertilisation is not an obligatory event for fruit production in certains plants'. Explain the statement.
Enumerate the differences between asexual and sexual reproduction. Describe the types of asexual reproduction exhibited by unicellular organisms.
Explain how stability of the DNA of the species is ensured in sexually reproducing organisms.
