Differentiate between the followings: (a | Class 12 Biology Chapter Molecular Basis of Inheritance, Molecular Basis of Inheritance NCERT Solutions

Current NCERT chapter

Academic session 2026-27, Chapter 5 in the current curriculum.

Welcome to the NCERT Solutions for Class 12 Biology - Chapter Molecular Basis of Inheritance. This page offers a step-by-step solution to the specific question from Exercise 1, Question 8: Differentiate between the followings:
(a) Repetitive DNA and Satellite DNA
(b) mRNA and tRNA
(c) Template strand and Coding strand. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 8: Differentiate between the followings:
(a) Repetitive DNA and Satellite DNA
(b) mRNA and tRNA
(c) Template strand and Coding strand
Answer:

(a) Repetitive DNA and satellite DNA

Repetitive DNA

Satellite DNA

1.

Repetitive DNA are DNA sequences that contain small segments, which are repeated many times.

Satellite DNA are DNA sequences that contain highly repetitive DNA.

     

(b) mRNA and tRNA

mRNA

tRNA

1.

mRNA or messenger RNA acts as a template for the process of transcription.

tRNA or transfer RNA acts as an adaptor molecule that carries a specific amino acid to mRNA for the synthesis of polypeptide.

2.

It is a linear molecule.

It has clover leaf shape.

(c) Template strand and coding strand

Template strand

Coding strand

1.

Template strand of DNA acts as a template for the synthesis of mRNA during transcription.

Coding strand is a sequence of DNA that has the same base sequence as that of mRNA (except thymine that is replaced by uracil in DNA).

2.

It runs from 3’ to 5’.

It runs from 5’to 3’.

 


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Molecular Basis of Inheritance.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

  • Gourav
  • Mar 20, 2019

Ttranscription or translation in ans b


  • Ridhima Paul
  • Mar 13, 2019

Please explain in simple way


  • Palgslsgs
  • Dec 06, 2018

It's not ans. I mean this answer is too short & Not explainable


  • saif khan
  • Oct 20, 2016

Thanks


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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 8: Differentiate between the followings: (a) Repetitive DNA and Satellite DNA (b) mRNA and tRNA (c) Tem....

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