BIOC 300B Study Guide - Final Guide: Transferase, Methionine, Release Factor

84 views6 pages

roseweasel705

18 Aug 2016

School

University of Victoria

Department

Biochemistry

Course

BIOC 300B

Professor

Ausio Juan

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Link amino acid to trna therefore implementing the genetic code. Trna serves as adapter molecule that binds to as speci c codon and brings with it an. 4-letter alphabet of nucleic acids translated into 20 amino acids. Depends on both protein and nucleic acid factors. Molecules that play roles in protein synthesis are trna, mrna, ribosomes and many proteins. Link between amino acids and nucleic acids are amioacyl-trna synthetases. Proteins are synthesized in the 5"-->3" direction (howard dintzis experiment) Fidelity of protein synthesis requires accurate recognition of three-base codons on mrna. Amino acid can not itself recognize the codon. Amino acid is attached to a trna that can recognize the codon amino acid for chain. About half ribonucleotides are base paired to form db helices. 3" end of activated amino acid has aa attached to oh group of adenosine resiude of acceptor stem. Anticodon present in loop in middle of molecule.

Related Questions

1. _________________________ is the name of the process that produces proteins using RNA molecules.

a.Transcription

b Translation

c. Replication

d. Mutagenesis

2. The peptide bonding site on the ribosome:

a. A site

b. P site

c. E site

d. D site

3. The name given to the bond formed between two amino acids.

a. Hydrogen bond

b. Double bond

c. Peptide bond

d. Negative bond

4. __________________________ is the movement of the mRNA molecule on the ribosome to open up the A-site for the new incoming amino acid.

a. Transformation

b. Mutation

c. Translocation

d. Initiation

5. What does the term semi-conservative mean.

a. Replication of RNA is semi-conservative, each new strand consists of one old strand of RNA and one new strand of RNA.

b. Replication of DNA is semi-conservative, each new strand consists of one old strand of DNA and one new strand of DNA.

c. Replication of DNA is semi-conservative, each new strand consists of new strands of nucleotides.

d. Transcription of RNA is semi conservative.

6. This molecule functions during protein synthesis to recognize the codon and bring the proper amino acid back to the ribosome for translation.

a. mRNA

b. tRNA

c. rRNA

d. DNA polymerase

7. What is meant by the base-pairing rule.

a. Bases on a single strand of DNA are always found as pairs

b. Adenine always base pairs with guanine; cytosine with thymine

c. Adenine always base pairs with thymine; cytosine with guanine

d. Bases on a single strand of RNA are found in pair.

8. In this step of protein synthesis, amino acids are added to a growing polypeptide chain.

a. Initiation.

b. Elongation.

c. Termination.

d. Transpiration.

9. Three complementary bases found in a mRNA are called ____________________.

a. Anti-codon.

b. Triplet.

c. Doublet.

d. Codons.

10. Which statement best describes the job or function of the messenger RNA.

a. Carries the map of the gene sequence in the form of codons to the cytoplasm

for translation of the protein.

b. It transfers amino acids to the ribosome for protein synthesis.

c. It forms the ribosomes.

d. It helps replicate DNA.

ceruleangnat663

BIOC 300B Study Guide - Final Guide: Transferase, Methionine, Release Factor

Document Summary

Get access

Related Documents

BIOC 300B Chapter Notes - Chapter 28: Purine, 23S Ribosomal Rna, Phosphodiester Bond

BIOC 300B Study Guide - Midterm Guide: Exon, Spliceosome, Escherichia Coli

BIOC 300B- Final Exam Guide - Comprehensive Notes for the exam ( 44 pages long!)

Related Questions