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Structure and chemical composition of DNA


This quiz is based on the physical structure and chemical composition of DNA. It deals with basic concepts related to DNA chemistry and DNA methods.
 

Formats Info Page Worksheet / Test Paper Quiz Review
Multiple choice

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1.

The DNA molecule is a polymer. Its monomer units are :

  amino acids

  nucleotides

  nucleosides

  nucleic acids

  Half-n-half Clue
 

2.

The DNA molecules of different species differ in their :

  phosphate backbone

  sequence of bases

  type of nucleotides

  All of the above

  Half-n-half Clue
 

3.

The technique Rosalind Franklin used to determine the structure of DNA was :

  centrifuge analysis

  X-Ray crystallography

  bacteriophages

  None of the above

  Half-n-half Clue
 

4.

The process of protein manufacture within ribosomes using mRNA is called :

  transcription

  protein derivation

  translation

  None of the above

  Half-n-half Clue
 

5.

A DNA strand has the sequence A-C-A-G-C-C-G-T-A. What would be its complementary strand ?

  G-T-G-A-T-T-A-C-G

  T-G-T-C-G-G-C-A-T

  U-G-U-C-G-G-C-A-U

  A-C-A-G-C-C-G-T-A

  Half-n-half Clue
 

6.

Each nucleotide in a DNA molecule consists of :

  a phosphate group, a hexose sugar and a nitrogeneous heterocyclic base.

  a sulfonyl group, a pentose sugar, and a nitrogeneous heterocyclic base.

  a phosphate group, a pentose sugar, and a oxygen base.

  a phosphate group,a pentose sugar and a nitrogeneous heterocyclic base.

  Half-n-half Clue
 

7.

A nucleoside consists of :

  a pentose sugar and a nitrogeneous heterocyclic base.

  a phosphate group, a pentose sugar and a nitrogeneous heterocyclic base.

  a hexose sugar and a nitrogeneous heterocyclic base.

  a pentose sugar and a oxygen base.

  Half-n-half Clue
 


 
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