Biotechnology Quiz: Multiple Choice Questions

10 Questions | By Merchyle | Updated: Mar 21, 2022 | Attempts: 1739

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Questions and Answers

1.

The nitrogen bases which pair with two hydrogen bonds are
- A.
  
  Adenine and thymine
- B.
  
  Adenine and cytosine
- C.
  
  Cytosine and guanine
- D.
  
  Cytosine and adenine
2.

DNA differs from RNA in
- A.
  
  Presence of deoxyribose sugar
- B.
  
  Presence of thymine base
- C.
  
  Property of replication
- D.
  
  All of the above
3.

Extranuclear genetic material is found in
- A.
  
  Plastid and nucleus
- B.
  
  Mitochondria and plastids
- C.
  
  Nucleus and cytoplasm
- D.
  
  Mitochondria and nucleus
4.

Which of the following enzyme is required to release the tension imposed by uncoiling of strands?
- A.
  
  Endonuclease
- B.
  
  DNA ligase
- C.
  
  DNA gyrase
- D.
  
  DNA helicase
5.

The enzyme that cuts the bonds of DNA molecule at the origin of replication is
- A.
  
  Endonuclease
- B.
  
  DNA polymerase
- C.
  
  DNA gyrase
- D.
  
  DNA ligase
6.

If the strand of DNA has 35 nucleotides, how many phosphodiester bonds would exist?
- A.
  
  34
- B.
  
  35
- C.
  
  24
- D.
  
  70
7.

Formation of mRNA from DNA is called
- A.
  
  Transformation
- B.
  
  Transduction
- C.
  
  Translation
- D.
  
  Transcription
8.

Which of the following is not tool of genetic engineering?
- A.
  
  Vectors
- B.
  
  Enzymes
- C.
  
  Foreign DNA
- D.
  
  GMO
9.

In recombinant DNA technology a plasmid vector is cleaved
- A.
  
  Modified DNA ligase
- B.
  
  A heated alkaline solution
- C.
  
  The same enzyme that cleave the donor DNA
- D.
  
  The different enzyme other than that cleave the donor DNA
10.

'Nif gene' for nitrogen fixation is cereal crops like wheat, etc is introduced by cloning
- A.
  
  Rhizobium meliloti
- B.
  
  Bacillus thuringiensis
- C.
  
  Rhizopus
- D.
  
  Rhizophora