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 seedless fruit are formed?

  • Ans 1: Seedless fruit are also called parthenocapic fruits they formed without fertilization. It may be formed naturally as in banana and may formed artificially like seedless grapes.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 1

Question # 1

How seedless fruit are formed?

  • Ans 1: Seedless fruit are also called parthenocapic fruits they formed without fertilization. It may be formed naturally as in banana and may formed artificially like seedless grapes.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

Name two sexually transmitted disease and their control.

  • Ans 1: Genital herpes and AIDS. These sexually transmitted diseases can be controlled by avoiding sexual contact with affected person and adopting the hygienic conditions and also by taking medical treatment.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 3

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 4

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 5

Question # 1

Distinguish between vernalization and seed dormancy.

  • Ans 1: Vernalization: vernalization is the chilling treatment given to seed before sowing is called vernalization.
  • Ans 2: Dormancy:Dormancy is special condition of rest which enables an embryo to survive the unfavorable environmental conditions.
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12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

What are test tube babies?

  • Ans 1: Parental sperms and ovum is fertilized in vitro,(outside the female body) and then zygote is implanted back into mother uterus, placenta established and remaining development takes place in the body of the mother leading to normal birth.
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12th Class Biology Chapter 18 Short Questions

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