If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1. 11
2. 33
3. 333
4. 1
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
1. Bee
2. Wind
3. Bat
4. Water
Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?
| 1. | Cell-mediated immune response |
| 2. | Hormonal immune response |
| 3. | Physiological immune response |
| 4. | Autoimmune response |
Life cycles of Ectocarpus and Fucus respectively are:
1. Diplontic, Haplodiplontic
2. Haplodiplontic, Diplontic
3. Haplodiplontic, Haplontic
4. Haplontic, Diplontic
A gene whose expression helps to identify transformed cell is known as:
| 1. | Vector | 2. | Plasmid |
| 3. | Structural gene | 4. | Selectable marker |
A dioecious flowering plant prevents both:
1. Autogamy and geitonogamy
2. Geitonogamy and xenogamy
3. Cleistogamy and xenogamy
4. Autogamy and xenogamy
Which statement is wrong for Krebs' cycle?
| 1. | There is one point in the cycle where FAD+ is reduced to FADH2 . |
| 2. | During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesized. |
| 3. | The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid. |
| 4. | There are three points in the cycle where NAD+ is reduced to NADH + H+. |
Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in:
1. C4 plants
2. C2 plants
3. C3 and C4 plants
4. C3 plants
During DNA replication, Okazaki fragments are used to elongate:
| 1. | The lagging strand towards the replication fork. |
| 2. | The leading strand away from the replication fork. |
| 3. | The lagging strand away from the replication fork. |
| 4. | The leading strand towards the replication fork. |
Which of the following RNA should be most abundant in an animal cell?
| 1. | t-RNA |
| 2. | m-RNA |
| 3. | mi-RNA |
| 4. | r-RNA |
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