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 central Dogma? Give its two steps.

  • Ans 1: All organisms use the same basic mechanism of reading and expressing the genes,which is often referred to as central dogma.First step of central dogma is transcription and second step is translation (synthesis of protein from mRNA).
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 central Dogma? Give its two steps.

  • Ans 1: All organisms use the same basic mechanism of reading and expressing the genes,which is often referred to as central dogma.First step of central dogma is transcription and second step is translation (synthesis of protein from mRNA).
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 2

Question # 1

What is function of RNA polymerases in transcription?

  • Ans 1: The function of RNA polymerases are as
  • Ans 2: RNA polymerase -i synthesize rRNA
    RNA polymerase -ii synthesize mRNA
    RNA polymerase -iii synthesize tRNA.
Submit

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

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 4

Question # 1

What are nucleotides?

  • Ans 1: Nucleotide is structural unit of DNA. It composed of nitrogenous base,pentose sugar and phosphate group.
Submit

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

Question # 1

Define genetic code.

  • Ans 1: Genetic code is combination of three nucleotides,which specify a particular amino acid.
Submit

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

Question # 1

Differentiate between transcription and translation.

  • Ans 1: Transcription: it is the first step of protein synthesis,in transcription mRNA is synthesized from DNA.
  • Ans 2: Translation: It is the second step of protein synthesis in which DNA message for protein synthesis is decoded and polypeptide chain is synthesized.
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

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!