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Home⇒ Medical Science⇒ Biochemistry⇒ Protein synthesis
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Translation in prokaryotes begins by the formation of a 30S initiation complex between the 30S ribosomal subunit, mRNA, initiation factors and N-fMet tRNA [other wrong options] [Discuss in forum] 30S ribosomal subunit, tRNA and initiation factors 30S ribosomal subunit and mRNA only 30S ribosomal subunit, mRNA and initiation factors |
Q22 ⇒ How many bases of nucleic acid determine a single amino acid? Three [other wrong options] [Discuss in forum] Four One Two |
Q23 ⇒ On the ribosome, mRNA binds to the small subunit [other wrong options] [Discuss in forum] between the subunits to the large subunit none of these |
Q24 ⇒ Phosphorus is taken up by the cell during the process of ATP synthesis. [other wrong options] [Discuss in forum] carbohydrate synthesis. protein synthesis, lipid synthesis. |
Q25 ⇒ The direction of amino acid transfer to the growing polypeptide chain is from the P site to the A site on the ribosome [other wrong options] [Discuss in forum] from the A (aminoacyl tRNA site) site to the P (peptidyl tRNA site) site on the ribosome from the A site to the E (exit tRNA site) site on the ribosome from the P site to the E site on the ribosome |
Q26 ⇒ Which site of the tRNA molecule binds to the mRNA molecule? Anticodon [other wrong options] [Discuss in forum] Codon Amino acid 5 prime end |
Q27 ⇒ The lac operon contains the z, y and a structural genes encoding p-galactosidase, galactose permeases and thio-galactosidase transacetylase respectively [other wrong options] [Discuss in forum] encoding p-galactosidase and galactose permeases encoding P-galactosidase only None of the above |
Q28 ⇒ Degenerated codon differs mostly in both (b) and (c) [other wrong options] [Discuss in forum] the identities of their second base the identities of their third base the wobble position |
Q29 ⇒ Which of the following RNAs bind to an amino acid? tRNA [other wrong options] [Discuss in forum] mRNA rRNA hnRNA |
Q30 ⇒ The site of protein synthesis is Ribosome [other wrong options] [Discuss in forum] Nucleus Endoplasmic reticulum Chromosome |
Q31 ⇒ Which of the following has unusual bases? tRNA [other wrong options] [Discuss in forum] mRNA rRNA hnRNA |
Q32 ⇒ Which of the following amino acid starts all proteins synthesis? Methionine [other wrong options] [Discuss in forum] Glycine Proline Thymine |
Or |