A) are used in warming plant growth chambers B) help in maintaining atmospheric O2 and CO2 balance C) are produced by green photosynthesizing plants and are trapped in the Earths atmosphere D) prevent the escape of heat waves reradiated from the Earths surface Answer (Select an option above to get the answer):
(Single Best Answer) Question 1433: The chemical substance Taxol is said to have curative value for malignant tumors. It is obtained from the ?
A) shoots of Taxodium sp. B) roots and fruits of Taxodium sp. C) bark from stems of Taxus sp. D) roots of Taxus sp. Answer (Select an option above to get the answer):
(Single Best Answer) Question 1434: In the hills, the soil erosion takes place due to paid flow of rain water. It can be most effectively controlled by ?
A) building dykes B) channelizing the water C) jhum cultivation D) terrace cultivation Answer (Select an option above to get the answer):
A) interfere directly with bacterial cell wall synthesis B) increase cell membrane permeability to specific ions C) inhibit both transcription and translation D) inhibit electrophoretic separation of ions Answer (Select an option above to get the answer):
(Single Best Answer) Question 1437: Warthin-Finkelday giant cells in lymphoid tissue are characteristic of which of the following infections ?
A) Mumps B) Measles C) Congenital cytomegalovirus infection D) HIV infection Answer (Select an option above to get the answer):
A) Calciferol B) 7 hydroxycholesterol C) 25 hydroxycholecalciferol D) 1,25 dihydroxycholecalciferol Answer (Select an option above to get the answer):
(Single Best Answer) Question 1439: A 28-year old woman suffering from sickle cell anaemia marries a 31-year old with no abnormality. What are the respective probabilities to have (i) sickle cell disease and (ii) sickle cell trait in their offspring ?
A) 0% an d100% B) 25% and 50% C) 50% and 25% D) 25% and 25% Answer (Select an option above to get the answer):
(Single Best Answer) Question 1440: An asymptomatic 3-year old girl is brought to the emergency department after 2 hours of accidental kerosene ingestion. The appropriate management is ?
A) Gastric lavage B) Inducing emesis C) Chest X Ray and observation D) Charcoal haemoperfusion Answer (Select an option above to get the answer):