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

Define terms menstruation and menopause.

  • Ans 1: Menstrual cycle:In human females the periodic reproductive cycle is completed in approximately 28 days and involves changes in the structure and function of the whole reproductive system. It is called menstrual cycle.
  • Ans 2: Menopause:The end or complete stop of menstrual cycle is called menopause
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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

Define terms menstruation and menopause.

  • Ans 1: Menstrual cycle:In human females the periodic reproductive cycle is completed in approximately 28 days and involves changes in the structure and function of the whole reproductive system. It is called menstrual cycle.
  • Ans 2: Menopause:The end or complete stop of menstrual cycle is called menopause
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12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

What is Follicle atresia?

  • Ans 1: FSH stimulates the formation of several follicels. Only one of these follicles continues to grow with its primary oocytes while rest breakdown by a degenerative process called follicle atresia.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

What is difference between oogenesis and spermetogensis in humans?

  • Ans 1: Oogenesis: In oogenesis, primary oocytes divide meiotically in to secondary oocytes and first polar body. Second meiotic division in the oocytes proceeds as far as metaphase but is not complete until the oocyte is fertilized by the sperm.
  • Ans 2: Spermatogenesis: during spermatogenesis primary spermatocytes under go meiotic division to form four secondary spermatocytes and spermatids which then differentiated into four mature sperms.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

What is Follicle atresia?

  • Ans 1: FSH stimulates the formation of several follicels. Only one of these follicles continues to grow with its primary oocytes while rest breakdown by a degenerative process called follicle atresia.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

Define fruit set.

  • Ans 1: Retention of the ovary which become fruit after the fertilization. Or it is the process in which ovary after fertilization start to develop in to fruit is called fruit set.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

What is menopause? Which factors affect reproductive cycle in female?

  • Ans 1: The end or complete stop of the menstrual cycle is called menopause,after which the female stops producing the ova. Malnourishment and emotional stresses effect the female reproductive cycle which may be disturbed. The cycle is not completed in its normal 28 days.
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12th Class Biology Chapter 18 Short Questions

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