Biotechnology: MCQs Quiz – 03 29


Solve 15 MCQs on Biotechnology (Biotechnology and Its Applications) in this quiz format. MCQ Quiz No. 3
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Biotechnology: Quiz - 03

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Question 1
The transgenic animals are those which have
A
foreign DNA in some of their cells
B
foreign DNA in all of their cells
C
foreign RNA in all of their cells
D
Both (A) and (C)
Question 2
The two strands of DNA are held together by bonds of
A
Nitrogen
B
Oxygen
C
Hydrogen
D
Carbon
Question 3
There is a restriction endonuclease called EcoRI. What does "co" part in it stand for?
A
coli
B
colon
C
coelom
D
coenzyme
Question 4
Transgenic plants are developed by
A
Introducing foreign genes
B
Introducing gene mutations
C
Deleting certain chromosomes parts
D
Stopping spindle formation
Question 5
Cry genes or Bt genes are obtained from
A
Cotton pest
B
Tobacco plant
C
Bacillus thuringiensis
D
E - Coli
Question 6
Which enzyme is useful in genetic engineering?
A
DNAase
B
Amylase
C
Lipase
D
Restriction endonuclease
Question 7
Which is related to genetic engineering?
A
Plastid
B
Plasmid
C
Heterosis
D
Mutation
Question 8
Which of the following enzyme joints the okazaki fragments?
A
DNA polymerase
B
DNA ligase
C
Helicase
D
Restriction endonuclease
Question 9
Which of the following features should be present in vector?
A
It should replicate autonomously
B
It should have its own origin of replication
C
It should possess restriction enzyme cleavage sites
D
All of these
Question 10
Which of the following is a genetic vector?
A
Plasmid
B
Phage
C
Cosmid
D
All of these
Question 11
Which of the following is related to genetic engineering?
A
Mitochondrion
B
Golgi apparatus
C
Lysosome
D
Plasmid
Question 12
Which of the following is used in Biowar?
A
A pathogen
B
Toxin from a pathogen
C
A delivery system for the bioweapon agent
D
All of these
Question 13
Which of the following tool makes possible genetic engineering?
A
Restriction endonuclease
B
DNA polymerase
C
Helicase
D
RNA polymerase
Question 14
Which one contains four pyrimidine bases?
A
GATCAATGC
B
GCUAGACAA
C
UAGCGGUAA
D
TGCCTAACG
Question 15
Which one is found only in RNA?
A
Cytosine
B
Adenine
C
Uracil
D
Guanine
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29 thoughts on “Biotechnology: MCQs Quiz – 03

  • Abhishek S Mahajan

    this is very useful to us
    and it gives us confidence to solve this type of questions

  • Sachinmeya

    SIR
    one more doubt in question 14
    we have studied purine ( adenine, guanine )and pyrimidine ( cytosine, uracil, thymine)so according to question which contains 4 pyrimidines ?? actually there are 4 pyrimidines?? can you please correct me..??

    • Rajat

      the pyrimidines includes- cytosine(C), uracil(U), thymine(T)…and Option 1: GATCAATGC is the only option where there are 4 pyrimidines are present (two T, two C).

    • Siri

      Actually in 14th question They have asked – ‘Which one contain 4 py bases?’ As U said there r nly 3 py bases…. Check out in options for no. Of py bases in each sequence…..
      In option A – U could see there r exactly 4 py bases in sequence n all others are pu
      In Option B – U could see only 3 py bases in whole given sequence
      In option C – There r nly 2 py bases in the given whole seq
      In option D – There r 5 py bases
      But in question they have mentioned Num 4
      Hence ans is OPTION – A

      For more clarity Iam highlighting the py in each option down :
      A. gaTCaaTgC – nly 4 py
      B. gCUagaCaa – nly 3 py
      C. UagcggUaa – nly 2 py
      D. TgCCTaaCg – 5 py (morethan 4)
      So ans is OPTION – A
      I hope U got it clarified 🙂

  • Sachinmeya

    this questions are quite helpful for practicing MCQs..
    sir
    i have a doubt in question no 1
    in transgenic animals how foreign gene is introduced in all the cells??
    i think it should be in some of their cells….

    • Siri

      If its introduced nly in some of the cells dont U think that Original seq will think it as mutated or foreign n send those cells to Apoptosis. If we introduce foreign gene in all cells even though its foreign the cells’s funcrion wont be supressed. Think of homozygosity n heterozygosity for clear view of how genes work….. 😉