Animal Husbandry - Study Mode
[#491] Cobalt is mainly found in
Correct Answer
(D) Vitamin-B 12
Explanation
Solution: Cobalt is mainly found in Vitamin B 12 . Cobalt is a core element of vitamin B 12 (cyanocobalamin), which is essential for the prevention of anemia in humans. Ruminant animals such as cows, sheep, goats, deer and camel produce vitamin B 12 if there is adequate Co in their diet. Sources of Vitamin B 12 . Vitamin B 12 is naturally present in foods of animal origin, including fish, meat, poultry, eggs, and dairy products.
[#492] Knott's technique is a concentration method for detection of following parasite in blood
Correct Answer
(C) Microfilariae
Explanation
Solution: Knott's technique is a concentration method for the detection of Microfilariae parasites in blood. This technique is used to recover low numbers of microfilariae from blood. A solution is used to lyse the RBCs in a large blood sample, and the organisms are concentrated from the supernatant fluid by centrifugation. It is easy to perform, rapid and inexpensive, it conserves mf morphology and size, and it enhances the sensitivity of mf detection in blood samples.
[#493] Mating of a cross breed animal back to one of the pure parent is
Correct Answer
(C) Back crossing
Explanation
Solution: Mating of a cross-breed animal back to one of the pure parents is Back crossing. Backcrossing is a crossing of a hybrid with one of its parents or an individual genetically similar to its parent, to achieve offspring with a genetic identity closer to that of the parent. It is used in horticulture, animal breeding, and the production of gene knockout organisms. Backcrossing may be deliberately employed in animals to transfer a desirable trait in an animal of inferior genetic background to an animal of preferable genetic background.
[#494] Lactose is a disaccharide made of
Correct Answer
(D) Galactose and glucose
Explanation
Solution: Lactose is a disaccharide made of Galactose and glucose. Lactose is a disaccharide sugar synthesized by galactose and glucose subunits and has the molecular formula C 12 H 22 O 11 . Lactose makes up around 2 - 8% of milk. The compound is a white, water-soluble, non-hygroscopic solid with a mildly sweet taste. It is used in the food industry.
[#495] The cells parasitized in host by Rickettsia are
Correct Answer
(B) Vascular endothelial cells
Explanation
Solution: The cells parasitized in host by Rickettsia are vascular endothelial cells. Rickettsia is a genus of nonmotile, gram-negative, nonspore-forming, highly pleomorphic bacteria. These are obligate intracellular parasites that invade vascular endothelial cells in target organs, damaging them and producing increased vascular permeability with consequent oedema, hypotension and hypoalbuminaemia.