Protein synthesis multiple choice questions
Ap biology: protein synthesis
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This quiz will test your understanding of ‘Protein Synthesis.’ Choose the most suitable response from the four options offered. When you’ve done answering all of the questions, scroll down to the bottom of the page and press ‘Score’ to check your answers. Along with the correct answers, the percentage score will be shown.
Protein synthesis practice
1) The genetic code is a three-nucleotide sequence found in mRNA that specifies the protein’s amino acid sequence. But for the following, amino acids have the following characteristics: a) Uniqueness b) Uniform c) Overlapping d) Redundant 2) Aminoacyl t-RNA synthetase requires four high-energy phosphates to catalyze the addition of amino acids to the increasing polypeptide chain. It’s a) 4 ATP and b) 4 GTP. 2 ATP, 2 GTP c) 1 ATP, 3 GTP d) 1 ATP, 3 GTP 3) The ribosome has three tRNA binding sites (A, P, and E). Which of the following statements about these sites is NOT correct? a) An incoming aminoacyl-tRNA binds to the A site; b) Peptidyl-tRNA binds to the P site codon (an amino acid containing tRNA) c) Null t-RNA occupies the E site as it exits the ribosome d) None of the Above
10) Tetracyclins are antibiotics that inhibit protein synthesis by preventing initiation factors from binding to tRNA, elongation factors from binding to tRNA, and aminoacyl tRNA from binding to the mRNA-ribosome complex. d) None of the previous
#vg | lec 10 | questions on transcription i unit 3
This is a set of over 100 multiple-choice questions about various aspects of biological sciences. This collection is designed to assist those who are planning to take some of the competitive exams at different levels. Microbiology, Biochemistry, Biotechnology, Immunology, Biomedical Engineering, and other areas are often asked about. The correct answers are bolded for the reader’s immediate reference. Any of the questions in this set may be useful for use in different test papers by teachers.
Mcqs in biochemistry – protein metabolism
Assume you’ve been given an aggressively dividing culture of E.coli bacteria with radioactive thymine applied to it. What happens if a cell divides only once in the presence of this radioactive base? a) One of the daughter cells will have radioactive DNA, but not the other. b) None of the two daughter cells would be radioactive.c) Radioactive thymine would combine with radioactive guanine.d) Both daughter cells’ DNA would be radioactive.
The leading and lagging strands are differentiated by the fact that the leading strand is synthesized in the same direction as the replication fork’s opening, while the lagging strand is synthesized in the opposite direction.
b) Nucleotides are added to the 3′ end of the expanding strand to make the leading strand, and nucleotides are added to the 5′ end to make the lagging strand.
c) The lagging strand is continuously synthesized, while the leading strand is synthesized in short fragments that are gradually stitched togetherd) None of the above is right.