ACE Your Biology Exam - Biology Mock Test About RNA And Protein Synthesis
(275).jpg "ACE Your Biology Exam - Biology Mock Test About RNA And Protein Synthesis")
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination. Ace Your Biology Exam by passing Biology Mock Test about RNA and Protein Synthesis
- 1.
![What are the missing nucleotides (1), (2), (3) and (4) respectively in the following figure? - ProProfs]( "What are the missing nucleotides (1), (2), (3) and (4) respectively in the following figure?")
What are the missing nucleotides (1), (2), (3) and (4) respectively in the following figure?- A.
U – A – C – G
- B.
A – A – C – G
- C.
A – U – G – C
- D.
A – A – G – C
- 2.What is the number of amino acids produced by mRNA of a certain virus that its nucleic acid consists of 1800 base pairs, knowing that the whole molecule represents a genetic code?
- A.
600
- B.
599
- C.
601
- D.
More than 601
- 3.Bacteria produce ---------- when infected by a Bacteriophage.
- A.
Restriction enzymes then ligase enzymes
- B.
Modified enzymes then polymerase enzymes
- C.
Restriction enzymes then modified enzymes
- D.
Modified enzymes then restriction enzymes
- 4.What is the number of nucleotides of a DNA molecule that contains two complete turns?
- A.
10
- B.
20
- C.
30
- D.
40
- 5.The maximum number of different genetic codes for amino acids on mRNA is …...
- A.
3
- B.
20
- C.
61
- D.
64
- 6.For the formation of a protein consists of 300 amino acids, then the number of turns of the DNA molecule which is going to be transcribed is ……
- A.
30
- B.
90
- C.
15
- D.
45
- 7.The pores in the nuclear membrane transfer -------- to the cytoplasm
- A.
Ribosomes
- B.
tRNA
- C.
mRNA
- D.
All the previous
- 8.The ------- is responsible for reading the language of the amino acids and nucleotides.
- A.
Transfer RNA
- B.
RNA polymerase
- C.
Messenger RNA
- D.
Ribosome
- 9.The codon is three successive nucleotides found on ……….
- A.
DNA
- B.
Messenger RNA
- C.
Transfer RNA
- D.
Ribosome
- 10.A recombinant DNA molecule is produced by .....
- A.
Joining of two DNA fragments of the same organism.
- B.
Joining of more than two DNA fragments of the same organism.
- C.
Joining of two DNA fragments originating from different organisms.
- D.
Joining two mRNA molecules.
- 11.Which of the following statements are true regarding recombinant-DNA technology?
- A.
Is used to obtain large number of copies of specific DNA fragments
- B.
Is used to obtain large quantities of the protein produced by the concerned gene
- C.
Is used to integrate gene of interest into chromosomes where it expresses itself
- D.
All of them
- 12.Which of the following enzymes in bacteria are responsible for restricting the growth of viruses?
- A.
Reverse transciptase
- B.
Restriction endonuclease
- C.
Peptidyl transferase
- D.
Ligases
- 13.Which enzyme is used to join together two different types of DNA molecules?
- A.
Ligase
- B.
Endonuclease
- C.
Gyrase
- D.
Peptidyl transferase
- 14.How many DNA double strands are obtained from one DNA double strand after 4 cycles in PCR?
- A.
4
- B.
8
- C.
16
- D.
32
- 15.At what temperature do denaturation of DNA double helix takes place in the PCR?
- A.
60˚
- B.
54˚
- C.
74˚
- D.
94˚
- 16.At what temperature do annealing of DNA and primer takes place in PCR?
- A.
42˚
- B.
54˚
- C.
74˚
- D.
96˚
- 17.Which of the following is a mismatch?
- A.
Polymerase – Taq polymerase
- B.
Template – double stranded DNA
- C.
Primer – small number of nucleotides
- D.
Synthesis – 5’ to 3’ direction
- 18.Which of the following is true about DNA hybridization and species relatedness?
- A.
The more similar the DNA, the higher the DNA melting temperature
- B.
The less similar the DNA, the more hydrogen bonds will be formed
- C.
Unrelated species are more likely to share genetic similarities
- D.
Only species living in the same region will have similar DNA
- 19.Which of the following is a use for DNA hybridization?
- A.
To look for species' relatedness
- B.
To look for changes in gene expression
- C.
To understand the mechanisms of evolution in isolated populations
- D.
To decrease genetic mutation in a population
- 20.Conversion of messages carried by mRNA into amino acid sequences is called________.
- A.
Replication
- B.
DNA repair
- C.
Translation
- D.
Transcription
- 21.Name the suppressor which blocks translation in eukaryotes?
- A.
Stop codon
- B.
Releasing factor
- C.
Terminator
- D.
Poly-adenine tail
- 22.A section in the nucleic acid marks the end of a gene during transcription process .....
- A.
Promoter
- B.
Terminator
- C.
Releasing factor
- D.
RNA polymerase
- 23.What is the role of mRNA in protein synthesis?
- A.
It translates genetic code to a specific amino acid.
- B.
It modifies mRNA molecules prior to protein synthesis.
- C.
It provides a genetic map for the protein.
- D.
It catalyzes the process.
- 24.What is the role of the r-RNA in protein synthesis?
- A.
It translates genetic code to a specific amino acid.
- B.
It modifies mRNA molecules prior to protein synthesis.
- C.
It provides a genetic map for the protein.
- D.
It catalyzes the process.
- 25.Protein synthesis refers to the ......
- A.
Process of formation of amino acids directly from a DNA template.
- B.
Process of formation of mRNA from DNA template.
- C.
Process of formation of amino acids from mRNA.
- D.
Process of duplicating DNA required for protein synthesis.
Questions: 9 | Attempts: 46215 | Last updated: Oct 6, 2020
-
Sample QuestionA Cell builds it's proteins from the Instructions encoded inits _________?
Questions: 5 | Attempts: 14039 | Last updated: Jun 12, 2020
-
Sample QuestionMendel observed 7 pairs of contrasting characters in Pisum sativum. One of the following is not a part of that. Find out.
Questions: 28 | Attempts: 13082 | Last updated: May 12, 2021
-
Sample QuestionII-3 in the pedigree below has two brothers with hemophilia A, a bleeding disorder that is inherited as an X‑linked recessive trait. What is the risk of hemophilia for her children?
Back to top