(a) | Lipids are generally water soluble. |
(b) | Dietary proteins are the source of essential amino acids. |
(c) | Paper made from plant pulp and cotton fibre is cellulosic in nature. |
(d) | In a nucleic acid, the bond between the phosphate and hydroxyl group of sugar is an ester bond. |
1. | One | 2. | Two |
3. | Three | 4. | Four |
Assertion (A): | Adenine cannot pair with cytosine. |
Reason (R): | Adenine specifically forms hydrogen bonds with guanine whereas cytosine forms hydrogen bond with thymine. |
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. |
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Assertion (A): | The heterocyclic compounds in nucleic acids are the nitrogenous bases. |
Reason (R): | There are five types of nitrogenous bases which exists naturally. |
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. |
tRNA, mRNA, rRNA |