Trung tâm khảo thí trực tuyến-Online Test Center-

Kiến thức tổng quát || Trắc nghiệm IQ Trắc Nghiệm Sinh Học Trắc Nghiệm Thiên Văn Học Địa Lý - Môi Trường Lịch sử

Biotechnology - 52

1-	The first field tests were conducted with which of the following genetically altered organism?
	A -	bt Corn
	B -	Vaccinia virus containing a gene from the rabies virus
	C -	The flavrsavr tomato
	D -	Strawberry seedlings sprayed with ice-minus bacteria
2-	The delayed ripening tomato was created by a biotechnologist who __________ a gene.
	A -	altered
	B -	silenced
	C -	replaced
	D -	relocated
3-	Antisense technology
	A -	selectively blocks expression of a gene
	B -	combines genetic material from different species
	C -	combines organelles and cells
	D -	alters or transfers cells
4-	Antisense transgenic plants produced fruit that softened
	A -	more slowly than the normal fruit
	B -	more rapidly than the normal fruit
	C -	as the normal fruits
	D -	None of these
5-	Insect resistance in the transgenic plant has been achieved by
	A -	transferring genes for Bt toxins
	B -	transferring genes for protease inhibitors
	C -	transferring genes for other insecticidal secondary metabolities
	D -	All of the above
6-	Resistance to L-phosphinothrium in tobacco plants is developed by the transfer of
	A -	gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
	B -	gene for ALS (acetolactate synthase)
	C -	gene for GS (glutamine synthase)
	D -	Any of the above
7-	A __________ is a small laboratory set up to simulate conditions of a particular environment.
	A -	microcosm
	B -	mibridization
	C -	bioremediation
	D -	rhizosecretion
8-	The roots of a plant are converted into drug-producing structures in a process called
	A -	microcosm establishment
	B -	mibridization
	C -	bioremediation
	D -	rhizosecretion
9-	ACC demainase gene is responsible for
	A -	synthesis for ethylene
	B -	degradation of ACC an immediate precursor to ethylene
	C -	synthesis of polygalactouranase
	D -	Both (a) and (b)
10-	Two genes from a bacterium (Alcaligenes eutrophus) and a cotton gene produce
	A -	a plastic
	B -	a vaccine against the bacterium
	C -	a pharmaceutical product
	D -	herbicide resistance

[Người đăng: Thành Lãm - ST]

Ghé thăm Kênh của Vị Sư "hai lần chết đi sống lại"
Tu Si Chau Soc Thon
https://www.youtube.com/channel/UCoyC9WTTVR-M3qpTKKEXGnQ

Chau Soc Thon Official Channel