Identify the statement which is incorrect.
| 1. | Sulphur is an integral part of cysteine. |
| 2. | Glycine is an example of lipids. |
| 3. | Lecithin contains a phosphorus atom in its structure. |
| 4. | Tyrosine possesses an aromatic ring in its structure. |
Match the following techniques or instruments with their usage:
| (a) | Bioreactor | (i) | Separation of DNA fragments |
| (b) | Electrophoresis | (ii) | Production of large quantities of products |
| (c) | PCR | (iii) | Detection of pathogen, based on antigen-antibody reaction |
| (d) | ELISA | (iv) | Amplification of nucleic acids |
Select the correct option from the following:
| 1. | (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i) |
| 2. | (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) |
| 3. | (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) |
| 4. | (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv) |
First discovered restriction endonuclease that always cuts DNA molecules at a particular point by recognizing a specific sequence of six base pairs is:
1. EcoRI
2. Adenosine deaminase
3. Thermostable DNA polymerase
4. Hind II
Which of the following is associated with a decrease in cardiac output?
1. Sympathetic nerves
2. Parasympathetic neural signals
3. Pneumotaxic center
4. Adrenal medullary hormones
Progestogens alone or in combination with estrogens can be used as a contraceptive in the form of:
1. Implants only
2. Injections only
3. Pills, injections and implants
4. Pills only
Embryological support for evolution was proposed by:
| 1. | Ernst Heckel | 2. | Karl Ernst von Baer |
| 3. | Charles Darwin | 4. | Alfred Wallace |
Match the following group of organisms with their respective distinctive characteristics and select the correct option:
|
Organisms |
Characteristics |
||
|
(a) |
Platyhelminthes |
(i) |
Cylindrical body with no segmentation |
|
(b) |
Echinoderms |
(ii) |
Warm blooded animals with direct development |
|
(c) |
Hemichordates |
(iii) |
Bilateral symmetry with incomplete digestive system |
|
(d) |
Aves |
(iv) |
Radial symmetry with indirect development |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
Hormones stored and released from neurohypophysis are:
1. Thyroid-stimulating hormone and Oxytocin
2. Oxytocin and Vasopressin
3. Follicle-stimulating hormone and luteinizing hormone
4. Prolactin and Vasopressin
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Ovary | (i) | Human chorionic gonadotropin |
| (b) | Placenta | (ii) | Estrogen & Progesterone |
| (c) | Corpus luteum | (iii) | Androgens |
| (d) | Leydig cells | (iv) | Progesterone only |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (ii) | (i) | (iv) | (iii) |
Select the incorrectly matched pair from the following:
1. Chondrocytes - Smooth muscle cells
2. Neurons - Nerve cells
3. Fibroblast - Areolar tissue
4. Osteocytes - Bone cells
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