Agricultural Entomology - Study Mode
[#311] In India the Bt cotton was released for commercial cultivation in year
Correct Answer
(B) 2002
Explanation
Solution: In India Bt cotton was released for commercial cultivation in year 2002. In 2002, a joint venture between Monsanto and Mahyco introduced Bt cotton to India. India grew the largest GM cotton crop at 10.6 million hectares. India is the largest producer of cotton, and GM cotton, as of 2014.
[#312] Nemagel is a type of
Correct Answer
(A) Entomo Pathogenic Nematode
Explanation
Solution: Nemagel is a type of Entomo Pathogenic Nematode. Entomopathogenic nematodes are soft bodied, non-segmented roundworms that are obligate or sometimes facultative parasites of insects. Entomopathogenic nematodes occur naturally in soil environments and locate their host in response to carbon dioxide, vibration and other chemical cues.
[#313] The spotted boll worm is
Correct Answer
(A) Earias vittella
Explanation
Solution: The spotted boll worm is Earias vittella. Earias vittella, an Asian "spotted bollworm", is a moth species in the family Nolidae. The species was first described by Johan Christian Fabricius in 1794. Most records are from Asia, Australia and certain Pacific islands. Larvae chew holes into the base of bolls and may hollow out locks. Moist frass usually accumulates around the base of the boll. Larvae may also chew shallow gouges in the boll surface, which can become infected with rot organisms.
[#314] Tunica propria is an inner layer of
Correct Answer
(A) Ovariole
Explanation
Solution: Tunica propria is an inner layer of Ovariole. The inner cell layer is called the tunica propria which is an elastic membrane containing fine fibrils. It surrounds the whole of the ovariole including the terminal filament. It is a fairly thick layer at first, but when the ovariole enlarges during vitellogenesis it becomes stretched and very thin.
[#315] Barnase, barstar and bar genes are used for developing genetically modified
Correct Answer
(B) Mustard
Explanation
Solution: Barnase, barstar and bar genes are used for developing genetically modified Mustard. Barnase-barstar gene system was used to develop a line of non-self-fertilizing transgenic mustard (Brassica juncea) plants with enhanced outbreeding capability. The barnase-barstar transgene-based hybrid seed production technology has been commercially deployed in crops like Brassica napus. The system utilizes the expression of the barnase gene, encoding cytotoxic RNase protein in the tapetum cells to make one of the combiner's males sterile.