Tag: polymerisation

Quizzes (2) Questions (39)

Questions Related to polymerisation

Multiple choice biochemical polymers polymerisation chemistry

Which of the following is correxect bonding in nucleotide?

  1. $A - T, \ G - C$
  2. $A - G,\ T - C$
  3. $G - T,\ A - C$
  4. $A - A,\ T - T$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct bonding pairs in Nucleotide are Adenine- Thymine, Guanine- Cytosine where Adenine, Thymine, Guanine, Cytosine are bases which form in pairs to build up Nucleotides.

Multiple choice biochemical polymers polymerisation chemistry

A unit in nucleic acid which contains 'base-sugar phosphate' unit is called ?

  1. nuleotide

  2. nucleoside

  3. phosphotide

  4. polypeptide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Nucleotides are composed of three sub-unit molecules: a nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group.
Multiple choice biochemical polymers polymerisation chemistry

Which of the following bases is not present in DNA?

  1. Adenine

  2. Thymine

  3. Cytosine

  4. Uracil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
In DNA, four bases have been found. They are adenine (A), guanine (G), cytosine (C) and thymine (T).
Uracil is present in RNA.
Multiple choice biochemical polymers polymerisation chemistry

The $AT/GC$ ratio in human beings is: (where $A=$adenine,$T=$thymine,$G=$Guanine,$C=$cytosine)

  1. $1$
  2. $1.52$
  3. $9.3$
  4. $2$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A-T/G-C ratio is human beings is equal to 1.52

where A=Adenine T-Thymine, G-Guanine, C-Cytosine

Multiple choice biochemical polymers polymerisation chemistry

RNA is ?

  1. single helix strand

  2. double helix strand

  3. right hand twisted double helix strand

  4. triple helix strand
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
RNA is a single-stranded molecule in many of its biological roles and consists of a much shorter chain of nucleotides. 
Multiple choice biochemical polymers polymerisation chemistry

A nucleotide consists of

  1. carbon sugar

  2. nitrogen containing base

  3. phosphoric acid

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A nucleotide is made up of the following
Sugar ring, base (adenine, guanine, cytosine, thymine/uracil), phosphate molecule.
The sugar ring is made up of carbon atoms. The bases are nitrogenous. So, all of these are true.

Multiple choice biochemical polymers polymerisation chemistry

The replication of DNA can be catalyzed by:

  1. protein

  2. enzyme

  3. bacteria

  4. metal atom
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The replication of $DNA$ can catalyzed by an enzyme. Many enzymes are involved during this process such as DNA helicase, DNA ligase, DNA polymerase etc. Each enzyme has a specific function during replication.

Multiple choice biochemical polymers polymerisation chemistry

Emperical formula of glucose is 

  1. ${C _6}{H _{12}}{O _6}$
  2. $\;{C _3}{H _6}{O _3}\;$
  3. $\;{C _2}{H _4}O\;\;\;\;$
  4. $C{H _2}O$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The empirical formula is the simplest whole-number ratio of atoms in a compound. For glucose (C6H12O6), the ratio of C:H:O is 1:2:1, resulting in CH2O.

Multiple choice biochemical polymers polymerisation chemistry

Which among the following sequence defines Ribonucleotide?

  1. Ribose sugar $+$ Nitrogenous base
  2. Ribose sugar $+$ Protein
  3. Ribose sugar $+$ Phosphoric acid
  4. Ribonucleoside $+$ Phosphate group
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biochemical polymers polymerisation chemistry

A nucleotide is made up of:

  1. a base and sugar

  2. a base and phosphate unit

  3. a sugar and phosphate unit

  4. a sugar, a base and a phosphate unit
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sugar + Base + a phosphate unit constitute one nucleotide.
This is the definition of a nucleotide.