Discuss the advantages and disadvantages of sexual reproduction.

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 Multiple Choice QuestionsShort Answer Type

51. What is life span ?
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52. Write the approximate average life span of following organisms :

May fly, wheat, monkey, dog, cat, horse, elephant, eagle, man, parrot, tortoise, Banyan tree and sequoia tree. Name the oldest tree.

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53. Distinguish between asexual and sexual reproduction. Why is vegetative reproduction also considered as a type of asexual reproduction ?
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54.  List the different ways of asexual reproduction.
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 Multiple Choice QuestionsLong Answer Type

55.  Discuss the advantages and disadvantages of asexual reproduction.
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56. What is vegetative propagation ? Give two suitable examples.
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57. Discuss the advantages and disadvantages of sexual reproduction.


Advantages of sexual reproduction

1.Fusion of two gametes, genetic recombination, interaction etc. take place which causes variations in the offsprings ,thus it  also forms raw material for evolution.

2. The offsprings adapt more comfortably and quickly to the change in environmental conditions and have better chances of survival.

Disadvantages of sexual reproduction.

1.Usually two parents of opposite sexes are required (except in hermaphrodite).

2. It consumes more time and energy.

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 Multiple Choice QuestionsLong Answer Type

58.  Describe the fission in yeast.
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 Multiple Choice QuestionsShort Answer Type

59. Show the different kinds of asexual reproductive structures.
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 Multiple Choice QuestionsLong Answer Type

60.

Describe fission in animals as mode of reproduction.

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