Questions on Biotechnology: MCQ Test No. 6
Biotechnology: MCQs Test - 06
Adenosine deaminase deficiency
(A) A bacterium
(A), (B) and (D) only
(A) and (C) only
(B) and (D) only
(A) The first transgenic buffalo Rosie produced milk which was human alpha-lactalbumin enriched
(B) Restriction enzymes are used in isolation of DNA from other macro-molecules
(C) Downstream processing is one of the steps of R-DNA technology
(D) Disarmed pathogen vectors are also used in transfer of R-DNA into the host
Which are the two statements having mistakes?
Statements (A) and (C)
Statements (A) and (B)
Statements (B) and (C)
Statements (C) and (D)
Tobacco budworms and nematodes respectively
Corn borer and cotton bollworms respectively
Cotton bollworms and corn borer respectively
Nematodes and tobacco budworms respectively
Binds with epithelial cells of midgut of the insect pest ultimately killing it
Does not kill the carrier bacterium which is itself resistant to this toxin
Is activated by acid pH of the foregut of the insect pest
Is coded by several genes including the gene cry
Bt protein exists as active toxin in the Bacillus
The inactive protoxin gets converted into active form in the insect gut
The concerned Bacillus has antitoxins
The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Assertion is true statement but Reason is false.
Both Assertion and Reason are false statements.
The anticoagulant hirudin is being produced from transgenic Brassica napus seeds
Somatic hybridization involves fusion of two complete plant cells carrying desired genes
"Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology
"Flavr Savr" variety of tomato has enhanced the production of ethylene which improves its taste