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

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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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

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 2

Question # 1

Define labour pain.

  • Ans 1: At the time of birth, the reduction of progesterone level stimulates pituitary gland to produce oxytocin. This induces labour pain or contraction of the uterus wall.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

What are advantage of cloning?

  • Ans 1: Cloning has the advantage that all the offspring behave similarly.
  • Ans 2: All the members of a clone have similar feature like their parent.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

Name various parts of male reproductive system in male.

  • Ans 1: Tastes, penis, Vas defference,epididymus
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

What are Ovoviviparous?

  • Ans 1: In some animals like duck bill platypus internal fertilization leads to internal development of the young ones in a shelled egg and when development is completed shelled egg is laid which hatches the offspring, such animals are called ovaviviparous.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

Give importance of photoperiodism in plants.

  • Ans 1: Photoperiodism plays an important role in flowering of plants in long and short day plants.
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12th Class Biology Chapter 18 Short Questions

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