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

What is the role of P730 phytochrome in flowering?

  • Ans 1: P730 induce flowering in long day plant while inhibit flowering in short day plants.
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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

What is the role of P730 phytochrome in flowering?

  • Ans 1: P730 induce flowering in long day plant while inhibit flowering in short day plants.
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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

Why seed plants are predominantly present all around as?

  • Ans 1: Seed plants are very common around us become these plants are have many adaptations to survive on land like protected seeds,flower and fruit formation.Seed dispersal plays an important role in distribution of flowering plants.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 4

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 5

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 Preparation - Set 6

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

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