Lecture : Lecture 13 Translation

20 views5 pages

nursingstudent3636

28 Feb 2022

School

University of Maine

Department

Micro and Molecular Biology

Course

BMB 240

Professor

Catherine Hopper

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Lecture 13 translation: protein synthesis or translation. Converting the sequence of bases on the mrna to a peptide (protein: the players, 70s ribisome (get from powerpoint) made of 30s. 16 s ribosome complementary to shine- dalgarno sequence on mrna which helps to align ribosomes important mrna in the form of codons trna has transfer codons: messenger rna (mrna) Recognition site for ribosome complementary to region on 16s rrna mrna carries code to ribosome; ribosomes are protein factories: transfer rna (trna) three/four leaf clover. Transfer rna; type of rna that carries amino acids to the ribosome. Anti-codon: complementary to codon, has base pairs: recognition of mrna by trna. Anticodon complimentary binds to codon: the genetic code, initiation codon, aug -- codes for formal methionine, stop codons, uga, uaa, uag code for nothing, significance of the reading frame. Incorrect moves back one : asn, lle, pro, thr. These changes are caused by mutation; insertion or deletion: protein synthesis initiation.

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

1.What type of bond holds amino acids together in a polypeptide chain?

A. Peptide Bond B. Phosphodiester Bond C. Hydrogen Bond

2.Termination of translation takes place when the ribosome reaches:

A. A primer B. The promoter C. The start codon D. A stop codon

3. Which of the following is Different between prokaryotic and eukaryotic translation?

A. tRNA brings amino acids to the ribosome B. Codon is complementary to anticodon C. Coding dictionary D. Occurs in same place as transcription

jadejackal930

1. DNA, or the instructions for making proteins, is found within the _____ of the cell; while protein synthesis machinery is found in the _____ of the cell.

nucleus; cytoplasm

nucleolus; nucleus

cytoplasm;nucleus

nucleus; plasma membrane

2.During transcription, double stranded DNA is transcribed into a complementary molecule of

single-stranded DNA.

double-stranded DNA.

single-stranded mRNA.

single-stranded tRNA.

15. Place the following steps in the order in which they occur during gene expression.

mRNA is carried to ribosomes in the cytoplasm, DNA is transcribed into mRNA in the nucleus, mRNA is translated into polypeptides by tRNA

mRNA is carried to ribosomes in the cytoplasm, mRNA is translated into polypeptides by tRNA, DNA is transcribed into mRNA in the nucleus

DNA is transcribed into mRNA in the nucleus, mRNA is translated into polypeptides by tRNA, mRNA is carried to ribosomes in the cytoplasm

DNA is transcribed into mRNA in the nucleus, mRNA is carried to ribosomes in the cytoplasm, mRNA is translated into polypeptides by tRNA

Lecture : Lecture 13 Translation

Document Summary

Get access

Related Documents

BMB 240 Lecture Notes - Lecture 12: Ribose, Intron, Transcription Bubble

BIO_SC 1010 Lecture Notes - Lecture 22: Transfer Rna, Ribosomal Rna, Glutamine

HSCI 100 Lecture Notes - Lecture 2: Stop Codon, Start Codon, Dna Polymerase

Related Questions