12 Class Fsc Part 2 Short Questions Online Preparation of biology chapter 20 (Chromosoms and DNA)

Online Short Questions For Chapter 6 "12th Class Biology Chapter 20 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 20 Short Questions Preparation

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Biology - 12th Class Biology Chapter 20 Short Questions Preparation

Question # 1

What is universality of genetic code?

  • Ans 1: It mean it is same for all the organisms.Because of the universality of codon the genes can be transferred from one organism to another and successfully transcribed and translated in their new host.
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Prepare Complete Set Wise Questions For Chapter 6 "12th Class Biology Chapter 20 Short Questions Preparation "

12th Class Biology Chapter 20 Short Questions Preparation - Set 1

Question # 1

What is universality of genetic code?

  • Ans 1: It mean it is same for all the organisms.Because of the universality of codon the genes can be transferred from one organism to another and successfully transcribed and translated in their new host.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 2

Question # 1

What is translation? Or Define translation.

  • Ans 1: Synthesis of protein from the mRNA is called translation.It is second step of central dogma.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 3

Question # 1

Define Euchromatin.

  • Ans 1: The part of DNA is expressed time to time and condensed only during the cell division is called euchromatin. This coiling helps in movement of chromosomes during cell division.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 4

Question # 1

Define genetic code.Give its properties.

  • Ans 1: Genetic code is combination of three nucleotides,which specify a particular amino acid.
  • Ans 2: Properties of genetic code are:
    i) Genetic code is universal ii) Genetic code is coma less iii) Genetic cod is triplet.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 5

Question # 1

Define leading and lagging strand of DNA.

  • Ans 1: Lagging strand is that strand of DNA which is discontinuously synthesized while the strand of DNA which is continuously synthesized is called leading strand.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 6

Question # 1

Differentiate between sense and anti sense strands of DNA.

  • Ans 1: Sense strand; The strand of DNA which is opposite to the antisense strand and is not transcribe is known as sense strand or coding strand.
  • Ans 2: Anti-sense strand: Only one of the two strands of DNA are transcribed. This strand is called template strand or the antisense strand
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12th Class Biology Chapter 20 Short Questions

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