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- 1. Multiple ChoiceWhich sequence of DNA bases would pair with this partial strand
ATG TGA CAGATG TGA CAGTAC ACT GTCGTA AGT GACCAT TCA CTG - 2. Multiple Choice
Which of the following best describes a DNA molecule?double helixcontains ribosemade of amino acidscontains Uracil - 3. Multiple ChoiceWhich of the following units are repeatedly joined together to form a strand of DNA?amino acidsnucleotidesfatty acidspolysaccharides
- 4. Multiple ChoiceWhy is DNA important?it is very small and very complicatedit's in everythingit serves as the blueprint for traits of all living thingsbecause we eat it every day for energy
- 5. Multiple ChoiceWhich 2 molecules form the sides (backbone) of the DNA ladder?deoxyribose sugar and adeninedeoxyribose sugar and a hydrogen bonddeoxyribose sugar and the nucleusdeoxyribose sugar and phosphate
- 6. Multiple ChoiceWhich organelle is DNA usually found in?cell membranevacuolechloroplastnucleus
- 7. Multiple ChoiceNitrogenous bases are joined by which type of bond?polar bondsionic bondscovalent bondshydrogen bonds
- 8. Multiple ChoiceWhat are the three components of a nucleotide?sugar, hydrogen, nitrogen basesugar, oxygen, nitrogen basesugar, phosphate, nitrogen basesugar, phosphate, protein
- 9. Multiple Choice
RNA is a
Single strand
Double strand
Triple strand
- 10. Multiple Choice
Base pair for DNA is
A-T and C-G
A-C and T-G
U-A and C-G
U-C and A-G
- 11. Multiple Choice
Base pair for RNA is
A-T and C-G
A-C and T-G
U-A and C-G
U-C and A-G
- 12. Multiple ChoiceThe diagram shows the process ofTranscriptionTranslationReplicationMitosis
- 13. Multiple ChoiceGenetic info flows in one direction. Which best represents this flow?DNA-protein-RNAProtein-RNA-DNARNA-protein-DNADNA-RNA-protein
- 14. Multiple ChoiceWhat is the complement to the DNA strand below:
5'-ATGCCAT-3'5'-TACGGTA-3'3'-TACGGTA-5'3'-ATGGCAT-5'5'-ATGGCAT-3' - 15. Multiple ChoiceEnzyme that unwinds the DNAligaseDNA Polymeraseprimasehelicase
- 16. Multiple ChoiceAdds nucleotides to the newly synthesized strand of DNADNA polymerase IDNA polymerase IIIPrimaseLigase
- 17. Multiple Choicesynthesizes a short fragment of RNA that allows DNA polymerase III to bindligaseDNA polymerase Iprimasehelicase
- 18. Multiple Choiceremoves the RNA primer and adds DNA nucleotides to fill in the gapDNA polymerase IIIligaseprimaseDNA polymerase I
- 19. Multiple Choicedirection new nucleotides are synthesized on the new strand5' to 3' (new nucleotides added to the 3' end)3' to 5' (new nucleotides added to the 5' end)
- 20. Multiple ChoiceExperiment that radioactively labeled the proteins and DNA of bacteriophages to determine if DNA or protein was the transforming agentAveryWatson & CrickMesselson & StahlHershey & Chase
- 21. Multiple ChoiceDNA replication results in two DNA molecules,each one with two original strandseach one with two new strandseach one with one new strand and one original strandone with two new strands and the other with two original strands
- 22. Multiple ChoiceIf a DNA molecule is 18% Guanine which of the following is correct18% cytosine, 32% adenine, 32% thymine32% cytosine, 18% adenine, 32% thymine18% cytosine, 64% adenine, 64% thymine32% cytosine, 32% adenine, 18% thymine
- 23. Multiple Choicewhat kind of bond holds one nucleotide to another one above it or below it?ionicglycosidichydrogenphosphodiester
- 24. Multiple ChoiceSuppose a double-stranded DNA molecule was shown to have 15% adenine bases. What would be the expected percentage of guanine bases in that molecule?15%35%85%Not enough information
- 25. Multiple ChoiceWhere does transcription occur in eukaryotic cells?NucleusRibosomeCytoplasmRough E.R.
- 26. Multiple ChoiceWhat is the complementary tRNA anticodon to the following mRNA codon: AUGUACTACATGAAC
- 27. 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
- 28. Multiple ChoiceTranscribe the following DNA sequence:
TAT GGC ACTTAT GGC ACTATA CCG TGAAUA GGC UGAUAU GGC ACU - 29. Multiple ChoiceTranslate the following RNA sequence:
AUG AAU UGU UGAMet-Phe-Cys-StopMet-Asn-Cys-StopMet-Asn-Cys-TrpTyr-Leu-Thr-Thr - 30. Multiple ChoiceWhat is the complementary RNA sequence for the following:
ATC AAT CGT TAGTAG TTA GCA ATCUAG UUA GCA AUCAUC AAU CGU UAGGCT GGC TAC CGA - 31. Multiple ChoiceWhat is the amino acid sequence for the following:
GGG GCA CAT CACGly-Ala-His-HisTyr-Arg-Val-ValPro-His-Val-ValPro-Arg-Val-Val - 32. 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.
- 33. Multiple ChoiceThe anticodon of a particular tRNA molecule iscomplementary to the corresponding mRNA codon.complementary to the corresponding triplet in rRNA.the part of tRNA that bonds with a specific amino acid.catalytic, making the tRNA a ribozyme.
- 34. Multiple ChoiceOriginal: ATC CAT
Mutation: ATC GCAT
What mutation occurred?deletioninsertionsilenttransverse - 35. Multiple ChoiceWhat type of mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-ASubstitutionDeletionInsertionFrameshift - 36. Multiple Choicewhat does a promoter do?it allows a gene to be transcribedit creates a DNA segmentit is another word for ribosomesit is another word for RNA
- 37. Multiple ChoiceIn the mRNA sequence: AUGUGGAACAGAUAC, what would happen if in the last codon, Guanine was substituted with Cytosine?A stop codon would be insertedA frameshift mutation would occurA stop codon would be removedValine would be substituted for tyrosine
- 38. Multiple ChoiceWhat product gets made at the end of the process pictured?mRNAtRNApolypeptidesribosomes
- 39. Multiple Choice
What is the function of the poly-A tail in mRNA?
to add modified guanin to the 3' end of the mRNA
to indicate the site of translational termination
to code for the binding of RNA polymerase to the DNA
to help protect the mRNA from degradation by exonucleases (enzymes )
- 40. 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'
- 41. Multiple ChoiceThe segments of RNA that are cut out are called.exonsintronsmorons
- 42. Multiple ChoiceRNA contains the sugarribosedeoxyriboseglucoselactose
- 43. Multiple ChoiceWhich of the following is a base that is NOT contained in DNA?AdenineThymineUracilGuanine
- 44. Multiple Choice
What organelle is the site of translation?
Nucleus
Ribosome
Mitochondria
Chloroplast
- 45. Multiple ChoiceIn RNA processing, the coding sequence that remains in the final mRNA.TranslationCodonTranscriptionExon
- 46. Multiple ChoicePermanent change in a cell's DNAOperonDouble HelixMutationNucleosome
- 47. Multiple ChoiceA type of RNA that associates with proteins to form ribosomes.;IntronRNAMessenger RNARibosomal RNA
- 48. Multiple ChoiceType of RNA that transports amino acids to the ribosomesTransfer RNAMessenger RNARibosomal RNATranscription
- 49. Multiple ChoiceAn enzyme that regulates RNA synthesisRNASemiconservative replicationRNA polymeraseRibosomal RNA
- 50. Multiple Choicewhich of the following mutations results in the loss or addition of a single nucleotide, changing the DNA tripletsmissensenonsenseframeshiftsilent
- 51. Multiple ChoiceDNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.SubstitutionDeletionInsertionInversion - 52. Multiple ChoiceAre all mutations bad?YesNo
- 53. Multiple ChoiceA type of substitution in which no amino acids change is calledMissenseNonsenseSilentDeletion
- 54. Multiple Choice
Mutations can benefit humans because they can:
Cause illness
Make an organism more suited to live in its environment.
Make organisms live shorter lives
Cause organisms to grow extra limbs.
- 55. Multiple ChoiceWhat causes mutations?Mistakes in replication or environmental substancesThe amino acidsPassed down by geneticsIt's how your born
- 56. Multiple Choicea change in one DNA triplet that may result in a new triplet that codes for a stop codon instead of an amino acid is known asmissensenonsenseframeshiftsilent
- 57. Multiple Choice
What is located on the 3' end of DNA?
Hydrogen
Phosphate group
Nitrogenous base
Hydroxyl group
- Answer choicesTagsAnswer choicesTags