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

Start Test Download PDF

Biology - 12th Class Biology Chapter 20 Short Questions Preparation

Question # 1

What is role of promoter is transcription?

  • Ans 1: Promoter is responsible for the correct initiation of transcription process.
Submit

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 role of promoter is transcription?

  • Ans 1: Promoter is responsible for the correct initiation of transcription process.
Submit

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.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 3

Question # 1

What is meant by promoter?

  • Ans 1: A specific nucleotide sequence to which RNA polymerase attaches and initiate transcription of mRNA from a gene.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 4

Question # 1

How many chromosomes are found in ferns and in Frog?

  • Ans 1: Number of chromosomes found in ferns are more than 500 pairs.
    Number of chromosomes found in frog are 26.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 5

Question # 1

Differentiate between codon and anticodon.

  • Ans 1: Codon: Codon is sequence of three nucleotides present on mRNA and specifies an amino acid.
    For Example codon for methionine is AUG.
  • Ans 2: Anti Codon: Anticodon is the sequence of three nucleotides present on tRNA,anti codon of metionine is UAC.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 6

Question # 1

Differentiate between conservative and dispersive replication of DNA.

  • Ans 1: Conservative Replication: Conservative replication stated that the parental strands would remain intact and generate DNA copies consisting of entirely new molecules.
  • Ans 2: Dispersive Replication: Dispersive model states that parental DNA would become completely dispersed and that each strand of all the daughter molecules would become mixture of old and new DNA.
Submit

ic-science-white
Biology
20th Chapter

12th Class Biology Chapter 20 Short Questions

Here you can prepare 12th Class Biology Chapter 20 (Chromosoms and DNA). Click the button for 100% free full practice.

Start Chapter 20 Preparation

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!