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NCERT solutions Biology Class 12 chapter 6 Molecular Basis of Inheritance

Chapters

NCERT Biology Class 12

Biology Textbook for Class 12

Chapter 6 - Molecular Basis of Inheritance

Page 125

Group the following as nitrogenous bases and nucleosides:

Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.

Q 1 | Page 125

If a double stranded DNA has 20 per cent of cytosine, calculate the per cent of adenine in the DNA

Q 2 | Page 125

If the sequence of one strand of DNA is written as follows:

5'-ATGCATGCATGCATGCATGCATGCATGC-3'

Write down the sequence of complementary strand in 5'→3direction

Q 3 | Page 125

If the sequence of the coding strand in a transcription unit is written as follows:

5'-ATGCATGCATGCATGCATGCATGCATGC-3'

Write down the sequence of mRNA

Q 4 | Page 125

Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.

Q 5 | Page 125

Depending upon the chemical nature of the template (DNA or RNA) and the nature of nucleic acids synthesised from it (DNA or RNA), list the types of nucleic acid polymerases.

Q 6 | Page 125

How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?

Q 7 | Page 125

Differentiate between Repetitive DNA and Satellite DNA

Q 8.1 | Page 125

Differentiate between mRNA and tRNA

Q 8.2 | Page 125

Differentiate between Template strand and Coding strand

Q 8.3 | Page 125

List two essential roles of ribosome during translation.

Q 9 | Page 125

Explain (in one or two lines) the function of the following

Promoter

Q 11.1 | Page 125

Explain (in one or two lines) the function of the following

tRNA

Q 11.2 | Page 125

Why is the Human Genome project called a mega project?

Q 12 | Page 125

What is DNA fingerprinting?

Q 13.1 | Page 125

Give the applications of DNA fingerprinting technique.

Q 13.2 | Page 125

Briefly describe the following - Transcription 

Q 14.1 | Page 125

Briefly describe the following  - Polymorphism

Q 14.2 | Page 125

Briefly describe the following - Translation

Q 14.3 | Page 125

Briefly describe the following: Bioinformatics

Q 14.4 | Page 125

NCERT Biology Class 12

Biology Textbook for Class 12
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