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

  • Total Questions10

  • Available Sets6

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Biology - 12th Class Biology Chapter 20 Short Questions Preparation

Question # 1

What is transcription bubble? How is it formed?

  • Ans 1: The DNA strand open at specific place where enzyme is attached to the template strand forming transcription bubble.
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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 transcription bubble? How is it formed?

  • Ans 1: The DNA strand open at specific place where enzyme is attached to the template strand forming transcription bubble.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 2

Question # 1

Give the functions of the DNA polymerase III.

  • Ans 1: DNA polymerase III progressively threads the DNA through the enzyme complex,moving at rapid rate,some 1000 nucleotides/second.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 3

Question # 1

Define sense & antisense strands of DNA?

  • Ans 1: The strand of DNA which is transcribed is called template or antisense strand and the opposite strand is called sense strand.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 4

Question # 1

How is translation terminated?

  • Ans 1: When a chain terminating non sense codon is exposed,this non sense codon do not bind any tRNA but they are recognized by release factor,protein that release the newly made polypeptide from the ribosome.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 5

Question # 1

Name types of RNA.

  • Ans 1: There are three types of RNA,which are named as

  • Ans 2: i) Transfer RNA or tRNA, ii) Messenger RNA or mRNA, iii) Ribosomal RNA or r RNA.
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12th Class Biology Chapter 20 Short Questions Preparation - Set 6

Question # 1

Compare telocentric and acrocentric chromosomes.

  • Ans 1: Telocentric Chromosomes:Telocentric has centromere at one end and chromatid part is present at other end.
  • Ans 2: Acrocentric Chromosomes: Acrocentric has two unequal arms one is short and other is long.
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12th Class Biology Chapter 20 Short Questions

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