Biotechnology: MCQs Quiz – 06 12


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Questions on Biotechnology:  MCQ Test No. 6

More MCQs: “BIOTECHNOLOGY” | All MCQs Quiz on “Biology” | Visit Main site for More MCQs on Biology
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Biotechnology: MCQs Test - 06

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Question 1
The first clinical gene therapy was given for treating?
A
Rheumatoid arthritis
B
Chicken pox
C
Diabetes mellitus
D
Adenosine deaminase deficiency
Question 2
Emasculation is related to
A
Clonal selection
B
Mass selection
C
Pure line
D
Hybridization
Question 3
Which of the following terms is used to describe the component isolated from a plant, for in vitro culturing in the specific medium?
A
Synthetic seeds
B
Embryoid
C
Callus
D
Explant
Question 4
Nucleic acid segment tagged with a radioactive molecule is called
A
plasmid
B
probe
C
clone
D
vector
Question 5
Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain?
A
Exonuclease
B
Protease
C
Lipase
D
Endonuclease
Question 6
The enzyme employed for amplification of DNA during PCR is commercially obtained from
A
Trichoderma reesei
B
Bacillus licheniformis
C
Streptococcus pyogenes
D
Thermus aquaticus
Question 7
A regulatory body working under MoEF for the release of transgenic crops is
A
NBPGR
B
GEAC
C
NSC
D
NIPGR
Question 8
Cry1 endotoxins obtained from Bacillus Thuringiensis are effective against:
A
Flies
B
Mosquitoes
C
Boll worms
D
Nematodes
Question 9
In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (A-D) in this regard and select the correct option about which one or more of these can be used as a vector/vectors

Statements

(A) A bacterium

(B) Plasmid

(C) Plasmodium

(D) Bacteriophage

A
(A), (B) and (D) only
B
(A) only
C
(A) and (C) only
D
(B) and (D) only
Question 10
Read the following four statements (A-D) about certain mistakes in two of them

(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?

A
Statements (A) and (C)
B
Statements (A) and (B)
C
Statements (B) and (C)
D
Statements (C) and (D)
Question 11
Cry II Ab and Cry I Ab produce toxins that control
A
Tobacco budworms and nematodes respectively
B
Corn borer and cotton bollworms respectively
C
Cotton bollworms and corn borer respectively
D
Nematodes and tobacco budworms respectively
Question 12
Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein
A
Binds with epithelial cells of midgut of the insect pest ultimately killing it
B
Does not kill the carrier bacterium which is itself resistant to this toxin
C
Is activated by acid pH of the foregut of the insect pest
D
Is coded by several genes including the gene cry
Question 13
What is true about Bt toxin?
A
Bt protein exists as active toxin in the Bacillus
B
The inactive protoxin gets converted into active form in the insect gut
C
The concerned Bacillus has antitoxins
D
The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication
Question 14
Assertion : In plant tissue culture, somatic embryos can be induced from any plant cell. Reason : Any viable plant cell can differentiate in to somatic embryos.
A
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
C
Assertion is true statement but Reason is false.
D
Both Assertion and Reason are false statements.
Question 15
Which one of the following is a correct statement?
A
The anticoagulant hirudin is being produced from transgenic Brassica napus seeds
B
Somatic hybridization involves fusion of two complete plant cells carrying desired genes
C
"Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology
D
"Flavr Savr" variety of tomato has enhanced the production of ethylene which improves its taste
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There are 15 questions to complete.


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12 thoughts on “Biotechnology: MCQs Quiz – 06

  • Rida Fatima

    I’m really glad to have this type of questions
    I’m thankful to the authors who painstakingly frame this type of questions which really insert confidence in many students
    Thanks for instilling the courage in us to crack even the twisted questions….
    Thanks so much
    I really say every student should take this quiz and improve their score
    From: Student of karnataka

  • vinu jamdade

    very good question for cracking the neet exam really it,s awsome i like it !!!!!!!!!!!

  • Naveed

    The option no. C is aslo not correct as downstream processing is not alwayz the part of recombinant dna technology

  • keerthana

    good qustions. thank ypu very much.it is really awesome.

  • krishu

    woooooo…i got all of dem right…..confidence booster.really great set of question……

  • shreya patel

    its too good set of questions paper to revise ur topics.m so hppy to found it.nd now it is easy to get all topics at one place nd solved it.

  • BHARATH

    good questions but very difficult to do it…….