Colostrum, the yellowish fluid, secreted by the mother during the initial days of lactation is very essential to impart immunity to newborn infants because it contains:
| 1. | Immunoglobulin A | 2. | Natural killer cells |
| 3. | Monocytes | 4. | Macrophages |
Match the hominids with their correct brain size:
| Column-I | Column-II | ||
| (a) | Homo habilis | (i) | 900 cc |
| (b) | Homo neanderthalensis | (ii) | 1350 cc |
| (c) | Homo erectus | (iii) | 650-800 cc |
| (d) | Homo sapiens | (iv) | 1400 cc |
Select the correct option.
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (iv) | (i) | (iv) | (ii) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iii) | (iv) | (i) | (ii) |
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:
| 1. | Pharynx → Oesophagus → Ileum → Crop → Gizzard → Colon → Rectum |
| 2. | Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum |
| 3. | Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum |
| 4. | Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum |
Which of the following immune responses is responsible for the rejection of kidney graft?
| 1. | Cell-mediated immune response |
| 2. | Auto-immune response |
| 3. | Humoral immune response |
| 4. | Inflammatory immune response |
Variations caused by mutation, as proposed by Hugo de Vries, are:
1. small and directionless
2. random and directional
3. random and directionless
4. small and directional
Select the hormone-releasing Intra-Uterine Devices.
| 1. | Lippes Loop, Multitoad 375 |
| 2. | Vaults, LNG-20 |
| 3. | Multiload 375, Progestasert |
| 4. | Progestasert, LNG-20 |
DNA precipitation, out of a mixture of biomolecules, can be achieved by treatment with:
1. Chilled chloroform
2. Isopropanol
3. Chilled ethanol
4. Methanol at room temperature
Which of the following contraceptive methods involve the role of hormones?
| 1. | Pills, Emergency contraceptives, barrier methods |
| 2. | Lactational amenorrhea, Pills, Emergency contraceptives |
| 3. | Barrier method, Lactational amenorrhea, pills |
| 4. | CuT, Pills, barrier methods |
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
| 1. | 0.16 (AA); 0.36 (Aa); 0.48 (aa) |
| 2. | 0.36 (AA); 0.48 (Aa); 0.16 (aa) |
| 3. | 0.16 (AA); 0.24 (Aa); 0.36 (aa) |
| 4. | 0.16 (AA); 0.48 (Aa); 0.36 (aa) |
How does steroid hormone influence the cellular activities?
| 1. | Using aquaporin channels as second messenger |
| 2. | Changing the permeability of the cell membrane |
| 3. | Binding the DNA and forming a gene-hormone complex |
| 4. | Activating cyclic AMP located on the cell membrane |
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