Besides paddy fields cyanobacteria are also found inside vegetative part of :
Options
(a) Cycas (b) Equisetum (c) Psilotum (d) Pinus
Correct Answer:
Cycas
Explanation:
In Cycas specialised root called coralloid roots are […]
Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a ‘triplet’
Options
(a) Hershey and CHase (b) Morgan and Sturtevant (c) Beadle and Tantum (d) Nirenberg and Mathaei
Correct […]
Which one of the following groups of animals reproduces only by sexual means?
Options
(a) Ctenophora (b) Cnidaria (c) Porifera (d) Protozoa
Correct Answer:
Ctenophora
Explanation:
In Ctenophora, sexes are not separate. Reproduction […]
What was the most significant trend in evolution of modern man (Homo sapiens) from his ancestors?
Options
(a) Upright posture (b) Shortening of jaws (c) Binocular vision (d) increasing brain capacity
Correct Answer: […]
Removal of RNA polymerase III forms mucleoplasm will affect the synthesis of:
Options
(a) t RNA (b) hn RNA (c) m RNA (d) r RNA
Correct Answer:
t RNA
Explanation:
Removal of RNA […]
Medical Termination of Pregnancy (MTP) is considered safe up to how many weeks of preganancy?
Options
(a) Eight weeks (b) Twelve weeks (c) Eighteen weeks (d) Six weeks
Correct Answer:
Twelve weeks
Explanation: […]
In land plants, the guard cells differ from other epidermal cells in having :
Options
(a) cytoskeleton (b) mitochondria (c) endoplasmic reticulum (d) chloroplasts
Correct Answer:
chloroplasts
Explanation:
Guard cells differ from epidermal […]
About which day in a normal humans menstrual cycle does rapid secretion of LH (Popularly called LH-surge) normally occurs?
Options
(a) 14th day (b) 20th day (c) 5th day (d) 11th day
Correct […]
Which one of the following is the most widely accepted method of contraception in India, as at present?
Options
(a) Cervical caps (b) Tubectomy (c) Diaphragms (d) IUDs. (Intra uterine devices)
Correct Answer: […]
Select the option which shows correct matching of animal with excretory organs and excretory product
Options
(a) Housefly Renal tubules Uric acid (b) Labeo (Rohu) Nephridial tubes Ammonia (c) Salamander Kidney Urea (d) […]
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