Select the wrong statement:
| 1. | The viroids were discovered by D.J lvanovsky. |
| 2. | W.M. Stanley showed that viruses could be crystallized. |
| 3. | The term 'contagium vivum fluidum' was coined by MW Beijerinck. |
| 4. | Mosaic disease in tobacco and AIDS in human beings are caused by viruses. |
During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by?
1. Leghaemoglobin
2. Xanthophylls
3. Carotene
4. Cytochrome
The species confined to a particular region and not found elsewhere are termed as:
| 1. | Keystone | 2. | Alien |
| 3. | Endemic | 4. | Rare |
Which one of the following hormones is not involved in sugar metabolism?
| 1. | Cortisol | 2. | Aldosterone |
| 3. | Insulin | 4. | Glucagon |
Which of the following is not a function of the skeletal system?
1. Production of erythrocytes
2. Storage of minerals
3. Production of body heat
4. Locomotion
Which one of the following is not applicable to RNA?
1. Complementary base pairing
2. 5' phosphoryl and 3' hydroxyl ends
3. Heterocyclic nitrogenous bases
4. Chargaff's rule
Which one is the wrong statement?
| 1. | Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. |
| 2. | Mucor has biflagellate Zoospores |
| 3. | Haploid endosperm is a typical feature of gymnosperms. |
| 4. | Brown algae have chlorophyll a and c fucoxanthin. |
A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is?
1. Gamete Inseminated Fallopian Transfer
2. Gamete Intra Fallopian Transfer
3. Gamete Internal Fertilisation and Transfer
4. Germ Cell Internal Transfer
The wings of a bird and the wings of an insect are:
| 1. | Homologous structures, represent divergent evolution |
| 2. | Analogous structures, represent convergent evolution |
| 3. | Phylogenetic structures, represent divergent evolution |
| 4. | Homologous structures, represent convergent evolution |
Golden rice is a genetically modified crop plant where the incorporated gene is meant for the biosynthesis of:
| 1. | Vitamin-B | 2. | Vitamin-C |
| 3. | Omega 3 | 4. | Vitamin-A |
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