12th Class Fsc Biology Online Preparation for chapter 22 (Variation and Genetics)

Online Short Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 22 Short Questions Preparation

  • Total Questions10

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Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

What do you known about protanopia and tritanopia?

  • Ans 1: Protonopia is red colour blindness while tritonopia is blue color blindness.
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Prepare Complete Set Wise Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

12th Class Biology Chapter 22 Short Questions Preparation - Set 1

Question # 1

What do you known about protanopia and tritanopia?

  • Ans 1: Protonopia is red colour blindness while tritonopia is blue color blindness.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 2

Question # 1

Differentiate between continuous and discontinuous variations.

  • Ans 1: Continuous variations: In Continuous variations many intermediate forms of a trait are present and organism show very small difference for a trait.For example skin color,eye color.
  • Ans 2: Discontinuous variations: In discontinuous variations very sharp difference is present and no intermediate forms are present for a trait.For example tongue rolling,attached or free pinna.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 3

Question # 1

Why is blood group AB called as universal recipient?

  • Ans 1: AB blood group is called recipient because they have both A and B antigens but no antibodies,so they can easily accept or receive any type of blood group i.e,A,B,AB or O
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12th Class Biology Chapter 22 Short Questions Preparation - Set 4

Question # 1

Differentiate between monohybrid and dihybrid cross.

  • Ans 1: Monohybrid: A cross between two organisms which differ only in one character is called monohybrid cross.
  • Ans 2: Dihybrid: A cross between two organisms which differ only in two character is called dihybrid.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

Explain testicular feminization syndrome.

  • Ans 1: Testicular feminization syndrome is a rare X linked recessive trait.Although the persons affected by this trait have a set of XY chromosome.Yet tfm gene on their X chromosome develops them physically into females.They have breast,female genitalia a blind vagina but no uterus,degenerated testis are also present in abdomen.Such individuals are happily married as female but are sterile.it is an androgen insensitivity syndrome.Male sex hormone testoterone has no effect on them.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 6

Question # 1

how can you calculate frequency between two linked genes?

  • Ans 1: Frequency between two linked genes can be calculated by the following formula
    Recombination frequency=Recombination type
    --------------------------* 100
    Sum of all combinations
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22th Chapter

12th Class Biology Chapter 22 Short Questions

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