From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask:
1. and water vapour at
2. and water vapour at
3. and water vapour at
4. and water vapour at
In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct?
| 1. | Gross primary productivity is always more than Net primary productivity. |
| 2. | Gross primary productivity and Net primary productivity are one and the same. |
| 3. | There is no relationship between Gross primary productivity and Net primary productivity. |
| 4. | Gross primary productivity is always less than net primary productivity. |
2. Palindromic sequence
3. Recognition site
4. Selectable marker
Cuboidal epithelium with brush border of microvilli is found in :
1. Ducts of salivary glands
2. Proximal convoluted tubule of nephron
3. Eustachian tube
4. Lining of intestine
The body of the ovule is fused within the funicle at :
| 1. | Micropyle | 2. | Nucellus |
| 3. | Chalaza | 4. | Hilum |
In light reaction, plastoquinone facilitates the transfer of electrons from:
| 1. | Cytb6f complex to PS I | 2. | PS I to NADP+ |
| 3. | PS I to ATP synthase | 4. | PS II to Cytb6f complex |
Match the following diseases with the causative organism and select the correct option.
| Column-I | Column-II | ||
| (a) | Typhoid | (i) | Wuchereria |
| (b) | Pneumonia | (ii) | Plasmodium |
| (c) | Filariasis | (iii) | Salmonella |
| (d) | Malaria | (iv) | Haemophilus |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (i) | (iii) | (iv) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (iii) | (ii) | (iv) |
Match the following microorganism with product
| Column - I | Column - II | ||
| (a) | Clostridium butylicum | (i) | Cyclosporin A |
| (b) | Trichoderma polysporunt | (ii) | Butyric acid |
| (c) | Monascus purpureus | (iii) | Citric acid |
| (d) | Aspergillus niger | (iv) | Blood cholesterol lowering agent |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iii) | (iv) | (ii) | (i) |
Which of the following statements are true for the phylum-Chordata?
| (a) | In Urochordata, notochord extends from head to tail and is present throughout their life |
| (b) | In Vertebrata, notochord is present during the embryonic period only |
| (c) | Central nervous system is dorsal and hollow |
| (d) | Chordata is divided into 3 sub-phyla : Hemichordata, Tunicata and Cephalochordata |
1. (c) and (a)
2. (a) and (b)
3. (b) and (c)
4. (d) and (c)
Goblet cells of alimentary canal are modified from:
| 1. | Columnar epithelial cells | 2. | Chondrocytes |
| 3. | Compound epithelial cells | 4. | Squamous epithelial cells |
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