The incorrect statement about nucleic acid is:

1. It is responsible for heredity.
2. It is responsible for protein synthesis in a cell.
3. It is a constituent of the chromosome.
4. It is responsible for the transmission of chemical signals.
Subtopic:   DNA, RNA & Metal Ions |
 79%
From NCERT
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The correct statement about RNA is :

1. The helical structure of RNA is mostly single-stranded .
2. It has deoxyribose sugar.
3. It is the chemical basis of heredity.
4. It contains thymine (T)

Subtopic:   DNA, RNA & Metal Ions |
 80%
From NCERT
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A nucleoside is different from a nucleotide as:

Nucleoside Nucleotide
1. Sugar, Protein Sugar, Protein, Phosphoric acid
2. Fatty acid, Base Fatty acid, Base, Phosphoric acid
3. Sugar, Base Sugar, Base, Phosphoric acid
4. Sugar, Base, Phosphoric acid Sugar, Base
Subtopic:   DNA, RNA & Metal Ions |
 80%
From NCERT
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Given below are two statements: 
Assertion (A): Two strands of DNA are complementary to each other. 
Reason (R): Adenine specifically forms hydrogen bonds with guanine, whereas cytosine forms hydrogen bonds with thymine.
Select the most appropriate answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:   DNA, RNA & Metal Ions |
 83%
From NCERT
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