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 is nullo gametes?

  • Ans 1: A gamete without sex chromosomes is called nullo gamete.For Example Grasshopper male produce 50% nullo gametes and 50% with sex chromosomes.
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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 is nullo gametes?

  • Ans 1: A gamete without sex chromosomes is called nullo gamete.For Example Grasshopper male produce 50% nullo gametes and 50% with sex chromosomes.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 2

Question # 1

Explain gene and allele.

  • Ans 1: Gene is a part a DNA which can provide instruction for the synthesis of a protein.It is unit of inheritance.
  • Ans 2: Allele is an alternate from of gene.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 3

Question # 1

Define co-dominance.

  • Ans 1: Different alleles of a gene that are both expressed in a heterozygous condition are called co-dominance e.g MN blood group system.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 4

Question # 1

Two Normal parents have an albino child.What is the probability that their next child will also be an albino?

  • Ans 1: 3 of their sons will be normal and one will be albino that is the ratio is
    Normal : Albino
    3 1
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12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

Explain gene and allele.

  • Ans 1: Gene is a part a DNA which can provide instruction for the synthesis of a protein.It is unit of inheritance.
  • Ans 2: Allele is an alternate from of gene.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 6

Question # 1

What are sex influenced traits?Give an example.

  • Ans 1: Sex influencing traits occurs in both males and females but more common in one sex.It is controlled by an allele that is dominant in one sex but recessive in other.The difference in expression is due hormonal difference in two sexes.E.g, patteren baldness is sex influenced trait.
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12th Class Biology Chapter 22 Short Questions

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