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Human Reproduction

Short Answer Type

61. Differentiate between Zona pellucida and Corona radiata.

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62. Write short note on implantation.

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Long Answer Type

63. Write two major functions each of testis and ovary

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Short Answer Type

64. Differentiate between Morula and Blastula.

Differences between Morula and Blastula

Morula

Blastula

1.Morula is embryo with 8 - 16 blastomeres.

2. Cells are less in number.

3.Cavity (blastocoel) is absent.

4. It is solid

1.Blastula is formed when the morula divides and transform.

2. Cells are more in number.

3.Cavity (blastocoel ) is present.

4. It is hollow.

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65. How many eggs are released by a human ovary in a month. How many eggs do you think would have been released if the mother gave birth to identical twins. Would your answer change if the twins born were fraternal.

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66. How many eggs do you think were released by the ovary of a female dog which gave birth to six puppies ?

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Long Answer Type

67. Draw a labelled diagram of male reproductive system

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68. Draw a labelled diagram of female reproductive system.

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69.

What is spermatogenesis? Briefly describe the process of spermatogenesis.

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Short Answer Type

70. Draw a labelled diagram of sperm.

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