Identify the cytochrome which acts as a mobile carrier for the transfer of electrons between complex III and IV?
| 1. | Cytochrome a | 2. | Cytochrome a3 |
| 3. | Cytochrome b c1 | 4. | Cytochrome c |
The ratio of carbon dioxide fixation between C4 plants and C3 plants is :
| 1. | 2:1 | 2. | 2: 3 |
| 3. | 1:1 | 4. | 1:2 |
Which of the following bond is formed as a result of reaction of carboxyl group of one amino acid with amino group of other amino acid with elimination of water?
| 1. | Phosphodiester Bond | 2. | Hydrogen Bond |
| 3. | Glycosidic Bond | 4. | Peptide Bond |
Following crops have been extensively cultivated in CO2 rich atmosphere for higher yield:
| 1. | Sugar beet and Cabbage | 2. | Carrots and Tomatoes |
| 3. | Wheat and Sugar beet | 4. | Tomatoes and Bell pepper |
Which of the following was proved by girdling experiment?
| 1. | Apoplastic movement of water occurs through intercellular spaces |
| 2. | Symplastic movement of water occurs through interconnected protoplast |
| 3. | Xylem is responsible for uptake of water |
| 4. | Phloem is responsible for translocation of food |
Identify the fungi which do not belong to the group of other fungi among the following
| 1. | Sac-fungi | 2. | Puffballs |
| 3. | Mushrooms | 4. | Bracket Fungi |
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and the formation of X-shaped structures called chiasmata. |
| Reason (R): | In oocytes of some vertebrates, diplotene can last for months or years. |
In the light of the above statements, choose the correct answer from the options given below:
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of :
| 1. | Dalton units | 2. | Svedberg units |
| 3. | Monomeric units | 4. | Dobson units |
Which of the following is not a character of collenchyma tissue?
| 1. | They provide mechanical support to the growing part of the plant |
| 2. | They occur in layers below epidermis in dicotyledonous plants |
| 3. | They consist of cells with thick corners due to cellulose deposition |
| 4. | They are usually dead and without protoplasts |
Which of the following pair of micronutrients would help in the light phase of photosynthesis to help in the reaction leading to oxygen evolution?
1. Zinc and Chlorine
2. Manganese and Molybdenum
3. Molybdenum and Iron
4. Manganese and Chlorine
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