(a) Plasmid DNA and chromosomal DNA
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Plasmid DNA |
Chromosomal DNA |
|
Plasmid DNA is an extra-chromosomal DNA molecule in bacteria that is capable of replicating, independent of chromosomal DNA. |
Chromosomal DNA is the entire DNA of an organism present inside chromosomes. |
(b) RNA and DNA
|
RNA |
DNA |
|
|
1. |
RNA is a single stranded molecule. |
DNA is a double stranded molecule. |
|
2. |
It contains ribose sugar. |
It contains deoxyribose sugar. |
|
3. |
The pyrimidines in RNA are adenine and uracil. |
The pyrimidines in DNA are adenine and thymine. |
|
4 |
RNA cannot replicate itself. |
DNA molecules have the ability to replicate. |
|
5 |
It is a component of the ribosomes. |
It is a component of the chromosomes. |
(c) Exonuclease and Endonuclease
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Exonuclease |
Endonuclease |
|
|
|
It is a type of restriction enzyme that removes the nucleotide from 5’ or 3’ ends of the DNA molecule. |
It is a type of restriction enzyme that makes a cut within the DNA at a specific site to generate sticky ends. |
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:
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 12: Discuss with your teacher and find out how to distinguish between (a) Plasmid DNA and chromosomal DN....
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