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

  • Available Sets6

Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

What is law of segregation?

  • Ans 1: The two coexisting alleles for each trait in an individual segregate from each other at meiosis, so that each gamete has only one the two alleles.Alleles unite again random fertilization of gametes when zygote is formed.
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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 law of segregation?

  • Ans 1: The two coexisting alleles for each trait in an individual segregate from each other at meiosis, so that each gamete has only one the two alleles.Alleles unite again random fertilization of gametes when zygote is formed.
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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

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 4

Question # 1

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

  • Ans 1: Species XX XY XO XXY
    Human Female Male Male Male
    Drosophila Female Male Female Female
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12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

Differentiate between linkage and linkage group.

  • Ans 1: Linkage: linkage is a phenomenon in which all the genes on a chromosomes stay together is called linkage.
  • Ans 2: Linkage group: The genes which are present on a chromosome from a block and these genes atay together is called linkage group.
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12th Class Biology Chapter 22 Short Questions Preparation - Set 6

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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22th Chapter

12th Class Biology Chapter 22 Short Questions

Here you can prepare 12th Class Biology Chapter 22 (Variation and Genetics). Click the button for 100% free full practice.

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