| Statement I: | When the fitness of one species is significantly lower in the presence of another species, the process is defined as competition. |
| Statement II: | When fungi remain in association with living plants or animals, they are called saprophytes. |
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
Which of the following is not an attribute of a population?
1. Natality
2. Mortality
3. Species interaction
4. Sex ratio
The roots that originate from the base of the stem are:
| 1. | Primary roots | 2. | Prop roots |
| 3. | Lateral roots | 4. | Fibrous roots |
Which of the following is correct about viroids?
1. They have free RNA without protein coat.
2. They have DNA with protein coat.
3. They have free DNA without protein coat.
4. They have RNA with protein coat.
Which of the following pairs is of unicellular algae?
1. Gelidium and Gracilaria
2. Anabaena and Volvox
3. Chlorella and Spirulina
4. Laminaria and Sargassum
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+. |
The first phase of translation is:
1. Recognition of DNA molecule
2. Aminoacylation of tRNA
3. Recognition of an anti-codon
4. Binding of mRNA to ribosome
In water hyacinth and water lily, pollination takes place by:
1. Water currents only
2. Wind and water
3. Insects and water
4. Insects or wind
Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage . This process occurs at the end of:
1.
2. S phase
3.
4. M phase
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