Second Year Biology Chapter 18 Short Questions Online Preparation (Reproduction)

Online Short Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 18 Short Questions Preparation

Question # 1

Name various parts of male reproductive system in male.

  • Ans 1: Tastes, penis, Vas defference,epididymus
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Prepare Complete Set Wise Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

12th Class Biology Chapter 18 Short Questions Preparation - Set 1

Question # 1

Name various parts of male reproductive system in male.

  • Ans 1: Tastes, penis, Vas defference,epididymus
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

Define placenta. Give its function.

  • Ans 1: Placenta acts as bridge between mother body and foetus. Once the placenta established it start secreting progesterone hormone which maintain pregnancy. Placenta also play role in transport of nutrients and oxygen to foetus and bring back waste from the foetus to mother body.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

What are phytochromes?

  • Ans 1: Phytochromes are blue light sensitive proteins found in plants. They exist in two form i.e,P660 andP730. They play an important role in photoperiodism.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

Define parthenocarpy with example.

  • Ans 1: Formation of fruit without fertilization is called parthenocarpy. For example seedless grapes and banana.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

What is oestrous cycle?

  • Ans 1: Oestrous cycle is a reproductive cycle found in all female mammals except human female. In this cycle, the estrogen production prepares the uterus for conception partly and also follicle develops ova.At this stage female needs a physical stimulus of mating for ovulation. She exhibits a desire for mating or is said to be on heat.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

What is corpus luteum? Give its function.

  • Ans 1: The follicle cells after release of the egg are modified to from a special structure called corpus leuteum. It produces progesterone.
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18th Chapter

12th Class Biology Chapter 18 Short Questions

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