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

Differentiate between tissue culture and cloning.

  • Ans 1: Tissue Culture: It is the growth of a tissue or plant in an artificial growth culture medium under aseptic conditions.
  • Ans 2: Cloning: It is asexual reproduction in which genetically identical organisms are produced from a single species.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 1

Question # 1

Differentiate between tissue culture and cloning.

  • Ans 1: Tissue Culture: It is the growth of a tissue or plant in an artificial growth culture medium under aseptic conditions.
  • Ans 2: Cloning: It is asexual reproduction in which genetically identical organisms are produced from a single species.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

How Implantation differes from gestation?

  • Ans 1: Implantation: Implantation is when the new human created at fertilization implants in the uterus. The newly created offspring,technically referred to as a blastocyst,travels to the uterus through the fallopian tube and implants in the wall of the uterus.
  • Ans 2: Gestation: Gestation means carrying the embryo inside the females uterus.
    It is the time period from conception to birth of the child.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

Define Ovulation.

  • Ans 1: Discharge of ovum from the ovary is called ovulation.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

What is role of progestrone in pregnancy?

  • Ans 1: The end or complete stop of menstrual cycle is called menopause. After menopause female can't produce any more ovum or egg & can't give birth to any child.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

Differentiate between parthenocarpy and apomixes.

  • Ans 1: Apomixes: 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 ovary into fruit.
  • Ans 2: Parthenocarpy: 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 6

Question # 1

Define vernalization.

  • Ans 1: Chilling treatment give to the plant seeds before sowing is called vernalization.
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18th Chapter

12th Class Biology Chapter 18 Short Questions

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