Distinguish between asexual and sexual reproduction. Why is veget

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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 ?


(i) Differences between asexual reproduction and sexual reproduction

Asexual Reproduction

Sexual Reproduction

1. The process involves only one cell or one parent.

2. The whole body of the parent may act as reproductive unit or it can be single cell or a bud.

3. The offsprings are genetically similar to parent.

4. Only mitotic division takes place.

5. No formation of sex organs.

6. No evolutionary significance.

1. This process involves two cells or gametes belonging to either the same or different parents.

2. The reproductive unit is called gamete

which is unicellular and haploid.

3. The offsprings differ from parents.

4. Meiosis and mitosis both take place.

5. Formation of sex organs is essential.

6. It introduces variation hence of evolutionary significance.

(ii) Vegetative reproduction is also considered as a type of asexual reproduction because it does not involve  fusion of male and female gametes and require only one parent. New plants are produced by vegetative parts of plants without the formation of seeds or spores . 

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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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 Multiple Choice QuestionsShort Answer Type

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