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

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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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

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 2

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 3

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 4

Question # 1

What is Gonorrhoa and who caused it?

  • Ans 1: It is caused by a gram positive bacterium Neisseria gonorrhoeae,mainly affecting the mucous membrane of urinogenital tract. New born infants may acquire serious eye infections if they pass through the infected birth canal.It is highly contagious through sexual contacts.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

Give two disadvantages of cloning.

  • Ans 1: The entire organism produced by cloning are identical to each other and no genetic variability is produced.
  • Ans 2: All the organism will not show any resistant to disease if it outbreaks and all the generation will be died.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

Give two examples of short day plants.

  • Ans 1: Tobacco,Strawberry,Soybean are short day plants.
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12th Class Biology Chapter 18 Short Questions

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