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

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Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

Differentiate between dominant and recessive traits.

  • Ans 1: Dominant trait: They trait which is controlled by dominant gene or allele us called dominant trait.
  • Ans 2: Recessive trait: The trait which is controlled by recessive gene or allele is called recessive trait.
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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

Differentiate between dominant and recessive traits.

  • Ans 1: Dominant trait: They trait which is controlled by dominant gene or allele us called dominant trait.
  • Ans 2: Recessive trait: The trait which is controlled by recessive gene or allele is called recessive trait.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 2

Question # 1

What are jumping genes?

  • Ans 1: Jumping genes do not reside peacefully on their loci; they keep on hopping on different loci on the same chromosomes or other chromosomes.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 3

Question # 1

Differentiate between genotype and phenotype.

  • Ans 1: Genotype: Genotype is the genetic complement i.e the genes is an individual for a particular trait e.g"Rr" &"Rr" are alleles for red color."rr" are alleles for white colour.
  • Ans 2: Phenotype:"Phenotype" is the from of appearance of a trait in an organism".e.g Red and white flower colours are example of phenotype.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 4

Question # 1

What is hypophosphatemic rickets?

  • Ans 1: It is an X linked dominant trait.It is rare hereditary disease.it does not result from vitamin D deficiency but its cause is a genetic communication failure at molecular level.The genes encoding bone proteins never receive vitamin D message to function.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

What are sex limited traits?Give an example.

  • Ans 1: Sex limited traits are present only in one sex due to anatomical differences.Such trait affects a structure or function of the body present in only males or only females.For example genes for milk yield in dairy cattle affect only cows.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 6

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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22th Chapter

12th Class Biology Chapter 22 Short Questions

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