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

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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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

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 2

Question # 1

Define reproduction.What is its significance?

  • Ans 1: Process in which living organism produced their new generation like to themselves is called reproduction.
  • Ans 2: It ensures the survival of species.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

Differentiate between oviparous and viviparous.

  • Ans 1: Oviparous: Oviparous are the eggs laying animals like birds.
  • Ans 2: viviparous: Viviparous are those animals which give birth to their young ones like mammals
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

Define seed dormancy. Write its signifance. Give Its importance.

  • Ans 1: it is special condition of rest, which enables an embryo to survive the unfavorable environmental conditions.
  • Ans 2: Its importance is that during this period of rest the embryo ceases its growth.
  • Ans 3: This is of great survival importance to the plant in that it prevents the dormant seeds from germinating in response to condition such as long spell of warmth in winter.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 5

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 6

Question # 1

Define phytochromes and give its types.

  • Ans 1: Phytochromes are blue light sensitive proteins which receives the stimulus for flowering. They are of two type i.e, P660or red phytochrome and P730 or far red phytochrome.
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12th Class Biology Chapter 18 Short Questions

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