MCQ Bank
Two monomers in carbohydrates linked together by ---bonding
- A) Glycosidic bonding
- B) Peptide linkage
- C) Ester linkage
- D) Ether linkage
Which of the following RNA polymerases are responsible for the production of 5S rRNA?
- A) RNA polymerase i
- B) RNA polymerase ii
- C) RNA polymerase iii
- D) RNA polymerase iv
Which part of sigma factor associates with -10box?
- A) 1.2
- B) 2.4
- C) 4.4
- D) 4.2
In alkaptonuria ---enzyme is missing
- A) Homegenistic acid oxidase
- B) Amalyase
- C) Trypsin
- D) Arginase
Which cation is placed in the catalytic subunit of RNA polymerase?
- A) Zn2+
- B) Mn2+
- C) Mg2+
- D) Fe3+
RNA polymerase moves from 3 to 5 prime direction and synthetize in ----
- A) 5 to 3 prime
- B) 3 to 5 prime
- C) In any direction
- D) in direction of okazaki fragment
According to Chargaff rule
- A) AC=TC
- B) T+A=G+C
- C) A+G=T+C
- D) AT=TC
RNA polymerase opens ----base pairs at a time.
- A) 20bp
- B) 30bp
- C) 25bp
- D) 40bp
Which of the following steps for the production of RNA is not regulated by enhancers?
- A) Elongation
- B) Initiation
- C) Termination
- D) RNA processing
---- enzyme join two DNA fragments with sticky ends.
- A) Topoisomerase
- B) DNA gyrase
- C) DNA polymerase
- D) Ligase
Okazaki fragments are joined by
- A) Primase
- B) Helicase
- C) Gyrase
- D) Ligase
The E. coli RNA polymerase adds ------nucleotides per second.
- A) 20
- B) 30
- C) 40
- D) 50
When was the operation mechanism of a bacterial operon first elucidated?
- A) 151
- B) 1971
- C) 1981
- D) 1991
Lysosomes contain more than 50 types of -----enzymes
- A) Hydrolases
- B) Lipases
- C) Amylases
- D) Proteases
Insulin formed by genetically engineered bacteria and pancreas used for----------
- A) Maintains the blood glucose level
- B) Maintains the enzyme level
- C) Maintains protein level
- D) Maintains cholesterol level
Insulin formed by genetically engineered bacteria and pancreas used for----------
- A) Maintains the blood glucose level
- B) Maintains the enzyme level
- C) Maintains cholesterol level
- D) Maintains protein level
Frame shift mutation is a
- A) Substitution among nucleotide
- B) Insertion of nucleotide in a DNA sequence
- C) Deletion of nucleotide in a DNA sequence
- D) Reading frame of nucleotide in a DNA changed
Frame shift mutation is a
- A) Substitution among nucleotide
- B) Insertion of nucleotide in a DNA sequence
- C) Deletion of nucleotide in a DNA sequence
- D) Reading frame of nucleotide in a DNA changed
Triglycerides have---bonding
- A) Ester linkage
- B) Ether linkage
- C) Peptide linkage
- D) Glycosidic linkage
Peptide bond is linkage between ---- and ---- form proteins
- A) Carbon. Hydrogen
- B) Carbon .nitrogen
- C) Carbon .oxygen
- D) Carbon sulphur