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Protein Biosynthesis

A questionnaire on protein biosynthesis.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Who received the Nobel Prize for deciphering the genetic code?

  1. Nirenberg and Khorana
  2. Gamow
  3. Heinrich Matthai
  4. Temin
  5. Crick
Question 2 Multiple Choice (Single Answer)

Which of the following is responsible for the formation of the site responsible for protein synthesis?

  1. mRNA
  2. rRNA
  3. tRNA
  4. DNA
  5. Mitochondrion
Question 3 Multiple Choice (Single Answer)

How many codons make the genetic code?

  1. 4
  2. 16
  3. 64
  4. 46
  5. 20
Question 4 Multiple Choice (Single Answer)

Which was the first codon to be discovered in the genetic dictionary?

  1. GCC
  2. UGG
  3. AAA
  4. UUU
  5. UAA
Question 5 Multiple Choice (Single Answer)

What do we call the sequence of nitrogenous bases in mRNA molecules which enclose the information for protein synthesis?

  1. Codon
  2. Genetic code
  3. Chromosome
  4. DNA
  5. Purine
Question 6 Multiple Choice (Single Answer)

What is the process of synthesis of mRNA from DNA called?

  1. Transcription
  2. Translation
  3. Transformation
  4. Teminism
  5. Transduction
Question 7 Multiple Choice (Single Answer)

'A genetic code is degenerate.' What is meant by this statement?

  1. A genetic code is a triplet like UUU.
  2. There are no commas in the genetic code.
  3. Three codons are for amino acid serine.
  4. There are both initiation and termination codons.
  5. The codes are non-overlapping.
Question 8 Multiple Choice (Single Answer)

What is the function of mRNA?

  1. Formation of ribosomes acting as site for protein synthesis
  2. Transfer of activated amino acids to the site of protein synthesis
  3. To carry the genetic information of DNA into protoplasm and translate them into the language of protein
  4. To act as a carrier of hereditary material
  5. To help in rRNA synthesis
Question 9 Multiple Choice (Single Answer)

What do we call the unidirectional flow of genetic information from DNA to RNA to protein?

  1. One gene one enzyme concept
  2. One gene one polypeptide concept
  3. Central dogma
  4. Reverse transcription
  5. Transcription
Question 10 Multiple Choice (Single Answer)

Which enzyme causes the activation of amino acids during translation?

  1. RNA polymerase I
  2. Aminoacyl synthetase
  3. Reverse transcriptase
  4. Peptidyl transferase
  5. Amino-peptidase
Question 11 Multiple Choice (Single Answer)

Which amino acid brings about the initiation of polypeptide chain?

  1. Uracil
  2. Alanine
  3. Cysteine
  4. Methionine
  5. Arginine
Question 12 Multiple Choice (Single Answer)

Which of the following is not a step of translation?

  1. Attachment of RNA polymerase to initiation site
  2. Activation of amino acids
  3. Transfer of amino acid to tRNA
  4. Initiation of polypeptide chain
  5. Formylation of methionine
Question 13 Multiple Choice (Single Answer)

What do we call the transfer of AA-tRNA complex from A-site to P-site?

  1. Transduction
  2. Transcription
  3. Translocation
  4. Translation
  5. Termination
Question 14 Multiple Choice (Single Answer)

Which of the following is/are termination codon(s)?

  1. AUG
  2. UGU
  3. UAA
  4. UAG, UGA
  5. Both (3) and (4)
Question 15 Multiple Choice (Single Answer)

If the sequence of bases in DNA is TAAGCTAG, then the sequence of bases in the transcript will be

  1. AUUCGAUC
  2. UAAGCUAC
  3. TUUCGAUG
  4. CAUGGAAU
  5. GUAGCUUA
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