Artificial light, extended work-time and reduced sleep-time disrupt the activity of:
1. Thymus gland
2. Pineal gland
3. Adrenal gland
4. Posterior pituitary gland
Which of the following conditions will stimulate parathyroid gland to release parathyroid hormone?
1. Fall in active Vitamin D levels
2. Fall in blood Ca+2 levels
3. Fall in bone Ca+2 levels
4. Rise in blood Ca+2 levels
Which of the following is a correct statement?
1. IUDs once inserted need not be replaced.
2. IUDs are generally inserted by the user herself.
3. IUDs increase phagocytosis of sperms in the uterus.
4. IUDs suppress gametogenesis.
Which of the following sexually transmitted diseases do not specifically affect reproductive organs?
1. Genital warts and Hepatitis-B
2. Syphilis and Genital herpes
3. AIDS and Hepatitis B
4. Chlamydiosis and AIDS
Match the following genera with their respective phylum :
Column I | Column II | ||
(a) | Ophiura | (i) | Mollusca |
(b) | Physalia | (ii) | Platyhelminthes |
(c) | Pinctada | (iii) | Echinodermata |
(d) | Planaria | (iv) | Coelenterata |
Options: | (a) | (b) | (c) | (d) |
1. | iv | i | iii | ii |
2. | iii | iv | i | ii |
3. | i | iii | iv | ii |
4. | iii | iv | ii | i |
Which of the following animals are true coelomates with bilateral symmetry ?
1. Adult Echinoderms
2. Aschelminthes
3. Platyhelminthes
4. Annelids
The contrasting characteristics generally in a pair used for identification of animals in Taxonomic Key are referred to as:
1. Lead
2. Couplet
3. Doublet
4. Alternate
Match the following cell structure with its characteristic feature:
Column I | Column II | ||
(a) | Tight junctions | (i) | Cement neighboring cells together to form sheet |
(b) | Adhering junctions | (ii) | Transmit information through chemicals to another cell |
(c) | Gap junctions | (iii) | Establish a barrier to prevent leakage of fluid across epithelial cells |
(d) | Synaptic junctions | (iv) | Cytoplasmic channels to facilitate communication between adjacent cells |
Select the correct option from the following:
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (iv) | (i) | (iii) |
2. | (iv) | (ii) | (i) | (iii) |
3. | (iii) | (i) | (iv) | (ii) |
4. | (iv) | (iii) | (i) | (ii) |
Which of the following statements is INCORRECT?
1. | Cockroaches exhibit mosaic vision with less sensitivity and more resolution |
2. | A mushroom-shaped gland is present in the 6th-7th abdominal segments of male |
3. | A pair of spermatheca is present in the 6th segment of female cockroach |
4. | Female cockroach possesses sixteen ovarioles in the ovaries |
Select the correct statement:
1. | Expiration occurs due to external intercostal muscles. |
2. | Intrapulmonary pressure is lower than atmospheric pressure during inspiration. |
3. | Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure. |
4. | Expiration is initiated due to the contraction of the diaphragm. |