Q. No.The central dogma of molecular genetics states that the genetic information flows from:
1. amino acid - proteins - DNA
2. DNA - carbohydrates - proteins
3. DNA - RNA - proteins
4. DNA - RNA - Carbohydrates
Which of the following statements is not correct?
| 1. | Ovalbumin is a simple food reserve in egg white. |
| 2. | Blood proteins thrombin and fibrinogen are involved in blood clotting. |
| 3. | Denaturation makes the proteins more active. |
| 4. | Insulin maintains sugar level in the blood of the human body. |
| 1. | β -glycosidic bond | 2. | Peptide bond |
| 3. | Dative bond | 4. | α -glycosidic bond |
| 1. | The sugar component in RNA is ribose and the sugar component in DNA is 2'-deoxyribose. |
| 2. | The sugar component in RNA is arabinose and the sugar component in DNA is ribose. |
| 3. | The sugar component in RNA is 2'-deoxyribose and the sugar component in DNA is arabinose. |
| 4. |
The sugar component in RNA is arabinose and the sugar component in DNA is 2’-deoxyribose.
|
D(+) glucose yields an oxime with hydroxyl amine. The structure of the oxime would be:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Sucrose can be formed by:
1. α–D–galactopyranose and α–D–glucopyranose
2. α–D–glucopyranose and β–D–fructofuranose
3. β–D–galactopyranose and α–D–fructofuranose
4. α–D–galactopyranose and β–D–fructopyranose
During the process of digestion, the proteins present in food materials are
hydrolysed to amino acids as shown below.
Proteins \(\xrightarrow[]{\textbf{Enzyme(A)}}\mathrm{}\) Polypeptides \(\xrightarrow[]{\textbf{Enzyme(B)}}\mathrm{}\) Amino acids
Enzymes (A) and (B) are respectively:
| 1. | Amylase and maltase | 2. | Diastase and lipase |
| 3. | Pepsin and trypsin | 4. | Invertase and zymase |
Identify the sugar among the following that does not act as reducing sugar.
1. Glucose
2. Fructose
3. Lactose
4. Sucrose
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