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

Describe the process of cloning.

  • Ans 1: In animals especially vertebrate animals, a nucleus from the somatic cell is removed and introduced into an egg cell, whose nucleus has been destroyed by using UV light. The egg with transplanted to the parent who has contributed the nucleus.
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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

Describe the process of cloning.

  • Ans 1: In animals especially vertebrate animals, a nucleus from the somatic cell is removed and introduced into an egg cell, whose nucleus has been destroyed by using UV light. The egg with transplanted to the parent who has contributed the nucleus.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

Give the role of oxytocin.

  • Ans 1: Oxytocin of ovum from the ovary is called ovulation
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

Apomixes is a form of parthenogenesis.Discuss

  • Ans 1: In apomixes a diploid cell either from the nucellus or megaspore develops into a functional embryo in the absence of a male gamete. The rest of the ovule develops into seed and and ovary into fruit.
  • Ans 2: Parthenogenesis: Development of an egg without fertilization
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

How oestrous cycle different from menstrual cycle?

  • Ans 1: oestrous cycle: 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.
  • Ans 2: Menstrual Cycle: 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.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

What are advantages of cloning?

  • Ans 1: Cloning has the advantage that all offspring behave similarly. Secondly all the members of a clone are genetically identical to their parents. Good characters of hybrids can be transferred to the next generation without any alteration
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

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.
Submit

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18th Chapter

12th Class Biology Chapter 18 Short Questions

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