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How do Organisms Reproduce (Term - II) X

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Budding in hydra and yeast occurs by

  1. longitudinal division of parent body into two

  2. transverse division of parent body into two

  3. formation of an outgrowth on the parent body

  4. formation of spores in the parent body


Correct Option: C
Explanation:

Budding in hydra and yeast occurs by formation of an outgrowth on the parent body.

_________ is/are useful for the survival of species.

  1. Copying of DNA

  2. Variations

  3. Continuation

  4. Nutrition


Correct Option: B
Explanation:

Variations are useful for the survival of species. 

The causal organism of gonorrhoea is a

  1. bacterium

  2. fungus

  3. virus

  4. worm


Correct Option: A
Explanation:

Gonorrhoea is a sexually transmitted infection that is caused by the bacterium Neisseria gonorrhoeae. The usual symptoms in men are a burning sensation with urination, and discharge from the penis.

Binary fission occurs during

  1. favourable conditions

  2. unfavourable conditions

  3. hot conditions

  4. humid conditions


Correct Option: A
Explanation:

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If hydra is cut into two parts, it does not die because

  1. it can form a bud

  2. it can regenerate into two complete organisms

  3. it can produce spores

  4. the two parts are new individuals


Correct Option: B
Explanation:

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Which among the following plants has lost the capacity to produce seeds?

  1. Apple

  2. Pear

  3. Peach

  4. Banana


Correct Option: D
Explanation:

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Bread mould reproduces by

  1. spore formation

  2. regeneration

  3. fission

  4. budding


Correct Option: A
Explanation:

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Which life process is not essential for survival of individual life?

  1. Digestion

  2. Respiration

  3. Excretion

  4. Reproduction


Correct Option: D
Explanation:

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Binary fission differs from multiple fission in respect of

  1. the number of individuals formed after fission

  2. the number of individuals involved

  3. the sexual form of reproduction

  4. better survival value to the organisms


Correct Option: A
Explanation:

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Continuity of species is maintained by the process known as

  1. nutrition

  2. speciation

  3. reproduction

  4. variation


Correct Option: C
Explanation:

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The mode of reproduction in Leishmania (the organism, which causes kala–azar in humans), is called

  1. binary fission

  2. multiple fission

  3. both (1) and (2)

  4. none of these


Correct Option: A
Explanation:

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Where does fertilization take place in human beings?

  1. Uterus

  2. Fallopian tube

  3. Ovaries

  4. Vagina


Correct Option: B
Explanation:

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_________ acts as a platform where the pollen lands.

  1. Anther

  2. Style

  3. Ovary

  4. Stigma


Correct Option: D
Explanation:

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Which of the following characteristics does not appear in a girl during puberty?

  1. Hair growth in armpits

  2. Voice deepens

  3. Menstruation starts

  4. Breast size increases


Correct Option: B
Explanation:

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Where does the development of embryo take place in humans?

  1. Seminal vesicles

  2. Uterus

  3. Oviduct

  4. Ovary


Correct Option: B
Explanation:

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What carries the egg from ovary to the uterus?

  1. Vas deferens

  2. Epididymis

  3. Fallopian tube

  4. Vagina


Correct Option: C
Explanation:

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After landing on the stigma, the pollen grain germinates to give rise to

  1. ovary

  2. embryo sac

  3. pollen tube

  4. zygote


Correct Option: C
Explanation:

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Chemical method of preventing pregnancy is done by altering the _________ balance of the body.

  1. hormonal

  2. protein

  3. enzyme

  4. fat


Correct Option: A
Explanation:

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What is the fate of ovule after fertilization?

  1. Seed

  2. Flower

  3. Fruit

  4. Ovary


Correct Option: A
Explanation:

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The germ cells involved in sexual reproduction are called

  1. zygote

  2. gametes

  3. embryo

  4. ovaries


Correct Option: B
Explanation:

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The food reserve of a seed is

  1. radicle

  2. cotyledon

  3. plumule

  4. seed coat


Correct Option: B
Explanation:

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Which of the following is not a characteristic of sexual reproduction?

  1. It involves the formation of gametes.

  2. It leads to variations in the offspring.

  3. It produces identical copies of parents.

  4. It promotes diversity of characteristics in the offspring.


Correct Option: C
Explanation:

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Surgical method of preventing fertilization in females involves tying-up of the

  1. ovary

  2. seminal vesicle

  3. uterus

  4. fallopian tube


Correct Option: D
Explanation:

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The ratio of DNA content of gamete to that of parent body cell is

  1. 1 : 2

  2. 2 : 1

  3. 1 : 1

  4. 2 : 2


Correct Option: A
Explanation:

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The fusion of sperm and egg initially results in formation of _________.

  1. zygote

  2. gametes

  3. embryo

  4. foetus


Correct Option: A
Explanation:

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_________ provides the fluid to lubricate the ducts of male reproductive system.

  1. Testis

  2. Vas deferens

  3. Seminal vesicle

  4. Scrotum


Correct Option: C
Explanation:

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Which of the following organs is not a part of male reproductive system in humans?

  1. Vagina

  2. Vas deferens

  3. Seminal vesicle

  4. Epididymis


Correct Option: A
Explanation:

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Testis are placed in the scrotum so as to

  1. produce the male sex hormones

  2. provide proper nourishment for testis development

  3. provide a temperature 2 to 3oC lower than the body temperature

  4. provide a temperature 2 to 3oC higher than the body temperature


Correct Option: C
Explanation:

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The causal organism of gonorrhoea is a

  1. bacterium

  2. fungus

  3. virus

  4. worm


Correct Option: A
Explanation:

Gonorrhoea is a sexually transmitted infection that is caused by the bacterium Neisseria gonorrhoeae. The usual symptoms in men are a burning sensation with urination, and discharge from the penis.

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