Sail E0 Webinar

MCQs

Total Questions : 58 | Page 1 of 6 pages
Question 1. Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is
  1.    O site
  2.    A site
  3.    T site
  4.    P site
 Discuss Question
Answer: Option D. -> P site
Question 2. Negative regulation of protein synthesis is accomplished by
  1.    the binding of a repressor to the RNA polymerase
  2.    the binding of a repressor to the DNA
  3.    the binding of RNA polymerase to the promoter
  4.    allosteric inhibition
 Discuss Question
Answer: Option B. -> the binding of a repressor to the DNA
Question 3. Which binding is inhibited by pactamycin?
  1.    Aminoacyl-tRNA to the A-site of 30S subunit
  2.    Peptidyl t-RNA to the 50S subunit
  3.    Initiator-tRNA to 30S/40S initiation complexes
  4.    Formation of peptide bond in P site
 Discuss Question
Answer: Option C. -> Initiator-tRNA to 30S/40S initiation complexes
Question 4. When was the genetic code completed?
  1.    1952
  2.    1968
  3.    1958
  4.    1966
 Discuss Question
Answer: Option D. -> 1966
Question 5. Which of the following act as the blueprint or template for the process of protein synthesis that takes place on ribosomes?
  1.    mRNA
  2.    rRNA
  3.    tRNA
  4.    DNA
 Discuss Question
Answer: Option A. -> mRNA
Question 6. What is the maximum number of different amino acids in a polypeptide chain coded by the synthetic polyribonucleotides (UCAG)5?
  1.    One
  2.    Two
  3.    Four
  4.    Three
 Discuss Question
Answer: Option D. -> Three
Question 7. Which stop codon has been found to encode selenocysteine?
  1.    UGA
  2.    UAA
  3.    AGA
  4.    UAG
 Discuss Question
Answer: Option A. -> UGA
Question 8. Which of the following is a nontranslated sequence located between the transcription and the translation start site?
  1.    Leader sequence
  2.    Reading frame
  3.    Ending frame
  4.    Trailer sequence
 Discuss Question
Answer: Option A. -> Leader sequence
Question 9. Which phage always carries a small piece of E.coli genome?
  1.    Lambda
  2.    T3
  3.    T4
  4.    Mu
 Discuss Question
Answer: Option D. -> Mu
Question 10. The final step of gene expression is protein synthesis, which is also known as
  1.    none of these
  2.    transcription
  3.    replication
  4.    translation
 Discuss Question
Answer: Option D. -> translation

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0