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- 1. Multiple ChoiceTranslation takes place in theribosomechloroplastnucleusmitochondria
- 2. Multiple ChoiceBrings the amino acids to the ribosomemRNAtRNArRNADNA
- 3. Multiple ChoiceWhat would be the tRNA anticodon for the mRNA codon CAG?GTCGUCCUGCAG
- 4. Multiple ChoiceWhat is the term for a three-nucleotide sequence that codes for an amino acid?basecodonamineserine
- 5. Multiple ChoiceWhich phrase best describes translation?converts mRNA into a polypeptidecatalyzes bonds between amino acidsproduces RNA from DNA moleculesrecycles tRNA molecules for reuse
- 6. Multiple ChoiceWhat type of bonds are forming during translation?Peptide bondsHydrogen bondsAcid bonds
- 7. Multiple ChoiceEXTRA AWESOME QUESTION: Which types of cells can begin the process of translation even before the mRNA has been completely transcribed?EukaryotesProkaryotesBoth Prokaryotes and Eukaryotes canNo cells can can do this
- 8. Multiple ChoiceHow many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA42612 - 9. Multiple Choice
Which phase of which process does this picture show?TranscriptionTranslationReplication - 10. Multiple ChoiceWhat would happen if we did not have start codons?Polypeptide chains would continue to growAmino acids would bind to tRNAProtein synthesis wouldn't occurmRNA would form a double strand
- 11. Multiple ChoiceWhich of the following occurs first in translation?The small ribosomal subunit binds to mRNAThe large ribosomal subunit binds to mRNAtRNA binds to the mRNAA peptide bond forms between amino acids
- 12. Multiple ChoiceWhat is the correct amino acid sequence for the mRNA code AUGCCAGUAUGAMet-Pro-Ala-ValMet-Pro-ValTyr-Gly-HisTyr-Gly-Arg-His
- 13. Multiple Choice
. What are the building blocks of proteins called?
nucleotides
proteins
amino acids
carbohydrates
- 14. Multiple ChoiceUsing the codon identify the amino acid sequence:
AUG-CCA-GUA-GGG-UAAMET-HIS-ALA-GLY-STOPMET-PRO-GLY-VAL-STOPMET-PRO-VAL-GLY-STOPMET-THR-SER-ASP-STOP - 15. Multiple ChoiceWhat structure in a cell is the site for making proteins?ribosomesmitochondrialysosomeGolgi body
- 16. Multiple ChoiceWhat is this a picture of?mRNAtRNArRNApRNA
- 17. Multiple ChoiceWhich amino acid is made from the RNA codon UUA?PhenylalanineLeucineSerineTyrosine
- 18. Multiple ChoiceWhat is the relationship between a protein, the cell, and DNA?DNA is produced by protein which is produced in the cellProtein is composed of DNA which is produced in the cellDNA makes RNA which produces protein in the cellA cell is composed of DNA and protein
- 19. Multiple ChoiceProcess in which amino acids are assembled into proteins at the ribosome?TranslationTranscriptionMeiosisReplication
- 20. Multiple ChoiceIf the mRNA sequence is AGA UUU CGA GCC,
what is the complementary tRNA anticodons?AGA TTT CGA GCCUCU AAA GCU CGGTCT AAA GCT CGGUCU AAA CGA GGG - 21. Multiple Choice
What is the correct sequence of protein synthesis?
A. tRNA brings amino acids to the ribosome
B. DNA molecules serve as the templates for mRNA.
C. mRNA molecules move to ribosomes.
D. Polypeptides are formed on ribosomes.
A-B-C-D
B-C-A-D
C-B-A-D
D-B-A-C
- 22. Multiple Choice
Overall, protein synthesis consists of these steps
DNA synthesis, RNA synthesis and transcription
transcription and translation
DNA synthesis, transcription and translation
- 23. Multiple ChoiceIn RNA, Uracil pairs with ______.cytosineadenineguaninethymine
- 24. Multiple ChoiceThe process to go from DNA to mRNA is _______translationtranscriptionreplication
- 25. Multiple ChoiceThe process to go from mRNA to a protein is called ____transcriptionrRNAreplicationtranslation
- 26. Multiple ChoiceWhat is the function of the poly-A tail in mRNA?to add modified guanin to the 3' end of the mRNAto indicate the site of translational terminationto code for the binding of RNA polymerase to the DNAto help protect the mRNA from degradation by hydrolytic enzymes
- 27. Multiple ChoiceWhat must happen to a newly made polypeptide before it can be secreted from a cell?it must be translated by a ribosome that remains free of attachment to the ERits signal sequence must target it to the ER, after which it goes to the GolgiIts signal sequence must be cleaved offIts signal sequence must target it to the plasma membrane
- 28. Multiple ChoiceWhich is the best description of a gene?a DNA sequence that is expressed to form a functional product; either RNA or polypeptidea DNA subunit that codes for a single complete proteina DNA-RNA sequence combination that results in an enzymatic producta descrete unit of hereditary information that consists of a sequence of amino acids
- 29. Multiple ChoiceA possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence phe-leu-ile-val would be?5'-TTG-CTG-CAG-TAG-3'3'-AAC-GAC-GUC-AUA-5'3'-AAA-AAT-ATA-ACA-5'3'-AAA-GAA-TAA-CAA-5'
- 30. Multiple ChoiceA tRNA (#1) attached to the amino acid lysine enters the ribosome. The lysine binds to the growing polypeptide on the other tRNA (#2) already in the ribosome. Where does tRNA (#2 move to next?A siteP siteE siteexit tunnel
- 31. Multiple ChoiceWhat is a peptide bond?Bond that holds two amino acids together.A bond that holds hydrogen and oxygen molecules together.A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.A bond that is formed by the sharing of electrons.
- 32. Multiple ChoiceThe diagram shows a bond forming between two amino acids. What is the name of this reaction?Dehydration SynthesisHydrolysisPepysisOxidation
- 33. Multiple ChoiceEach amino acid is different from the other due to....The R groupThe amino groupThe carboxyl groupThe central carbon
- 34. Multiple ChoiceWhere does transcription occur in eukaryotic cells?NucleusRibosomeCytoplasmRough E.R.
- 35. Multiple ChoiceA certain gene codes for a polypeptide that is 120 amino acids long. Approximately how many nucleotides long is the mRNA that codes for this polypeptide likely to be?3604804030
- 36. Multiple ChoiceThis is the triplet of bases on the end of a tRNA moleculeAnticodonCodonProtein
- 37. Multiple ChoiceA frameshift mutation could result froma base insertion only.a base deletion only.a base substitution only.either an insertion or a deletion of a base.
- 38. Multiple ChoiceOriginal: ATC CAT
Mutation: ATC GCAT
What mutation occurred?deletioninsertionsilenttransverse - 39. Multiple ChoiceWhat is an exon?section of mRNA that codes for proteinsection of mRNA that does not code for proteinsection of tRNA that codes for proteinsection of rRNA that codes for protein
- 40. Multiple ChoiceWhere is the TATA box found?in the promoter sequence of prokaryotesin the terminator sequence of prokaryotesin the promoter sequence of eukaryotesin the terminator sequence of eukaryotes
- 41. Multiple Choice
A mRNA sequence consist of 171 nucleotides. How many amino acids make up the protein this sequence will code for?
57
56
58
513
- 42. Multiple ChoiceThis is one job proteins do NOT have in the bodystoring genetic informationstructurespeed up chemical reactionstransport things through cell membrane
- 43. Multiple ChoiceWhich of the following events in translation is the first to occur in eukaryotes?elongation of the polypeptidebase pairing of activated methionine-tRNA to AUG of the messenger RNAbinding of the larger ribosomal subunit to smaller ribosomal subunitsthe small subunit of the ribosome recognizing and attaching to the 5'cap
- 44. Multiple ChoiceWhich ribosome part contains a tRNA after it has dropped off its amino acid & is about to exit?A siteP siteE siteB site
- 45. Multiple ChoiceWhat happens in RNA processing and where does it occur?5' cap and 3' poly A tail added, in nucleus3' cap and 5' poly A tail added, in cytoplasmintrons cut out and exons reattached, nucleusintrons cut out and exons reattached, cytoplasm
- 46. Multiple ChoiceFlexible base pairing between some tRNAs & codons where 3rd base can mismatch?wobblegobbleautonomymismatch
- 47. Multiple Choice
Place the order of events for
creating a protein in order (1- 6)
____mRNA attaches to rRNA
____codons are continuously read by tRNA
____tRNA reaches a stop codon
____ tRNA connects second amino acid by peptide bond to Methionine
____Polypeptide chain is created
____ mRNA’s start codon AUG is translated by tRNA’s anticodon (Methionine)
1,5,4,3,6,2
2,4,5,3,6,1
1,2,3,4,5,6
1,4,5,3,6,2
- 48. Multiple ChoiceThe reaction used to digest and break the bond in red is:HydrolysisDehydration SynthesisOxidationSingle Displacement
- 49. Multiple ChoiceThe two types of folding in the secondary structure are.....alpha-helix & beta-pleated sheetspolypeptide & nucleotideglobular & fibrous
- 50. Multiple Choice
The difference between tertiary and quartenary structure is:
Tertiary structure has double bond whereas quartenary structure does not have double bond
Tertiary structure consists of one polypeptide chain whereas quartenary structure consists of more than one polypeptide chains
Tertiary structure is fibrous whereas quartenary structure is globular
Tertiary structure is water-soluble whereas quartenary structure is lipid soluble
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