Select the correct option of haploid cells from the following groups :
| 1. | Primary oocyte, Secondary oocyte, Spermatid |
| 2. | Secondary spermatocyte, First polar body, Ovum |
| 3. | Spermatogonia, Primary spermatocyte, Spermatid |
| 4. | Primary spermatocyte, Secondary spermatocyte, Second polar body |
In recombinant DNA technology antibiotics are used:
1. to keep medium bacteria-free
2. to detect alien DNA
3. to impart disease-resistance to the host plant
4. as selectable markers
RNA interference is used for which of the following purposes in the field of biotechnology?
| 1. | to develop a plant tolerant to abiotic stresses |
| 2. | to develop a pest-resistant plant against infestation by nematode |
| 3. | to enhance the mineral usage by the plant |
| 4. | to reduce post-harvest losses |
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Pituitary hormone | (i) | Steroid |
| (b) | Epinephrine | (ii) | Neuropeptides |
| (c) | Endorphins | (iii) | Peptides, proteins |
| (d) | Cortisol | (iv) | Biogenic amines |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
The Total Lung Capacity (TLC) is the total volume of air accommodated in the lungs at the end of forced inspiration.
This includes:
| 1. | RV; IC (Inspiratory Capacity); EC (Expiratory Capacity); and ERV |
| 2. | RV; ERV; IC and EC |
| 3. | RV; ERV; VC (Vital Capacity) and FRC (Functional Residual Capacity) |
| 4. | RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume) |
After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
Select the correct statement from the following:
| 1. | Gel electrophoresis is used for the amplification of a DNA segment. |
| 2. | The polymerase enzyme joins the gene of interest and the vector DNA. |
| 3. | Restriction enzyme digestions are performed by incubating purified DNA molecules with the restriction enzymes of optimum conditions. |
| 4. | PCR is used for the isolation and separation of genes of interest. |
Match the following columns and select the correct option :
| Column-I | Column-II | ||
| (a) | Aptenodytes | (i) | Flying fox |
| (b) | Pteropus | (ii) | Angel fish |
| (c) | Pterophyllum | (iii) | Lamprey |
| (d) | Petromyzon | (iv) | Penguin |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iii) | (iv) | (i) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (ii) | (i) | (iv) | (iii) |
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (i) | Typhoid | (a) | Haemophilus influenzae |
| (ii) | Malaria | (b) | Wuchereria bancrofti |
| (iii) | Pneumonia | (c) | Plasmodium vivax |
| (iv) | Filariasis | (d) | Salmonella typhi |
| Options: | (i) | (ii) | (iii) | (iv) |
| 1. | (d) | (c) | (a) | (b) |
| 2. | (c) | (d) | (b) | (a) |
| 3. | (a) | (c) | (b) | (d) |
| 4. | (a) | (b) | (d) | (c) |
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Pneumotaxic Centre | (i) | Alveoli |
| (b) | O2 Dissociation curve | (ii) | Pons region of the brain |
| (c) | Carbonic Anhydrase | (iii) | Haemoglobin |
| (d) | Primary site of exchange of gases | (iv) | R.B.C. |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (i) | (iii) | (ii) | (iv) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iii) | (ii) | (iv) | (i) |
| 4. | (iv) | (i) | (iii) | (ii) |
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