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- 1. Multiple ChoiceWhich of the following units are repeatedly joined together to form a strand of DNA?amino acidsnucleotidesfatty acidspolysaccharides
- 2. Multiple ChoiceThe enzyme that unwinds the DNA to prepare for replicationhelicasereplicasepolymerasesynthase
- 3. 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
- 4. Multiple Choice
order of replication3, 4, 2, 13, 1, 4, 22, 1, 4, 33, 4, 1, 2 - 5. Multiple ChoiceA process in which DNA has the unique ability to make an exact copy of itself.ReplicationTranslationTranscription
- 6. Multiple ChoiceIn what phase of the cell cycle does DNA replication take place?G1SG2M
- 7. Multiple ChoiceWhich enzyme is responsible for adding nucleotides?TopoisomeraseDNA PolymeraseLigasePrimase
- 8. Multiple ChoiceThe process of DNA replication is called semi conservative because it results innone of theseTwo DNA molecules. One original molecule and one with two new strandstwo exact copies with new strandstwo identical molecules, each with 1 original strand and one new.
- 9. Multiple ChoiceBased on the diagram, the enzyme (represented in gray) is most likely...DNA polymeraseDNA LigaseNucleaseHelicase
- 10. Multiple ChoiceWhat will the first four bases of the new DNA strand look like if copying the template strand?TGGTACCAGTTGCAAC
- 11. Multiple ChoiceWhich of the following does DNA polymerase NOT do?connects nucleotides (in the new strand) through covalent bondsMatches the template nucleotides with free nucleotidesproofreadsIt does all of these functions
- 12. Multiple ChoiceWhich enzyme fixes the Okazaki fragments in the lagging strand?HelicasePolymeraseLigasePrimerase
- 13. Multiple ChoiceIf a strand reads:
3' A A A T T T C 5'
The matching strand would read...5' T T T A A A G 3'3' T T T A A A G 5'5' A A A T T T C 3'3' U U U A A A G 5' - 14. Multiple ChoiceWhat are the gaps between the newly synthesized DNA on the lagging strand called?Okazaki fragmentsPolymer gapsHelicase fragmentsAcidic gaps
- 15. Multiple Choice
#4 in the picture
Polymerase
Primase
Helicase
Ligase
- 16. Multiple Choice
Number 1 in the picture above
Replication
DNA Polymerase
Primase
Ligase
- 17. Multiple Choice
#3 setting Primers
Ligase
Helicase
Polymerase
Primase
- 18. Multiple ChoiceA DNA nucleotide contains all of the following, except...DeoxyribosePhosphate groupNitrogenous baseCholesterol
- 19. Multiple Choice
Which is the first step?
DNA Helicase unwinds original DNA strand
RNA Primase lays down RNA primer for new nucleotide bases.
DNA polymerase builds new strands by bring in new nucleotide bases.
Ligase knits together fragments on lagging strand
- 20. Multiple Choice
Which is the second step?
DNA Helicase unwinds original DNA strand
RNA Primase lays down RNA primer for new nucleotide bases.
DNA polymerase builds new strands by bring in new nucleotide bases.
Ligase knits together fragments on lagging strand
- 21. Multiple Choice
Which is the third step?
DNA Helicase unwinds original DNA strand
RNA Primase lays down RNA primer for new nucleotide bases.
DNA polymerase builds new strands by bring in new nucleotide bases.
Ligase knits together fragments on lagging strand
- 22. Multiple Choice
Which is the fourth step?
DNA Helicase unwinds original DNA strand
RNA Primase lays down RNA primer for new nucleotide bases.
DNA polymerase builds new strands by bring in new nucleotide bases.
Ligase knits together fragments on lagging strand
- 23. Multiple Choice
DNA replication runs from ______' to _____' and is said to be ______________________
5, 3, antiparallel
3, 5, antiparallel
5, 3, parallel
3, 5, parallel
- 24. Multiple Choice
Okazaki fragments appear on which strand of DNA during DNA replication?
lagging
leading
- 25. Multiple Choice
Direction that DNA is READ?
3' to 5'
5' to 3'
- 26. Multiple Choice
Structure C is
helicase
primase
DNA polymerase III
gyrase
- 27. Multiple Choice
H is the
leading strand
lagging strand
parent strand
none of these
- 28. Multiple Choice
Structure G is
primase
gyrase
DNA polymerase III
DNA polymerase I
- 29. Multiple Choice
This structure is an Okazaki fragment.
A
D
F
G
- 30. Multiple ChoiceWhich 2 molecules forms the sides (backbone) of the DNA ladder?deoxyribose and adeninedeoxyribose and a hydrogen bondsugar and the nucleusdeoxyribose (sugar) and phosphate
- 31. Multiple ChoiceAdenine bonds with ______________.GuanineThymineCytosineAdenine
- 32. Multiple ChoiceGuanine bonds with ______________.AdenineGuanineCytosineThymine
- 33. Multiple ChoiceName this structuredouble helixnucelotidetwisted ladderhydrogen bond
- 34. Multiple ChoiceA(n) _____ is a virus that enters a bacterial cell.endosporedecomposerplasmidbacteriophage
- 35. Multiple ChoiceA capsid isa structure that directly causes cell lysisthe type of virus that attacks bacteriathe genetic material of a virusthe protein coat of a virus
- 36. Multiple ChoiceThe copying of DNA into a strand of mRNA is calledtransformationtranscriptiontranslationreplication
- 37. Multiple ChoiceThe synthesis of a protein from the information carried by mRNA molecules.TransformationTranscriptionTranslationReplication
- 38. Multiple ChoiceIn RNA, adenine bonds withcytosineguaninethymineuracil
- 39. Multiple ChoiceWhich of the following isn't a type of RNA discussed in your notes?mRNApRNAtRNArRNA
- 40. Multiple ChoiceRNA can be found in the ___nucleuscytoplasmboth the nucleus and the cytoplasm
- 41. Multiple ChoiceSets of nucleotides that do not code for amino acidsintronsexonsexrondeletions
- 42. Multiple ChoiceA group of 3 mRNA that codes for an amino acid is called a __anticodontriadtripletcodon
- 43. Multiple Choice
What type of RNA carries the amino acids to the ribosome?
mRNA
tRNA
pRNA
rRNA
- 44. Multiple ChoiceWhat carries the genetic message out of the nucleus?DNAmRNAtRNArRNA
- 45. Multiple ChoiceHow many possible codons are there?36244864
- 46. Multiple ChoiceHow many amino acids are there?10203648
- 47. Multiple ChoiceWhat do amino acids form?RNADNAProteins
- 48. Multiple Choice
Which of the following is a pyrimidine?
adenine
thymine
guanine and thymine
cytosine and thymine
- 49. Multiple Choice
What causes a mutation?
a repeat in base pairs
a base pair being deleted
base pairs being flipped in order
Any change of sequence of base pairs
- 50. Multiple Choice
Which of the following is the correct order?
RNA -> DNA-> protein
protein -> DNA -> RNA
DNA -> protein -> RNA
DNA->RNA-> Protein
- 51. Multiple ChoiceWhich of the following is the sugar found in RNA?RiboseMaltoseDeoxyriboseAmylose
- 52. Multiple ChoiceCodons contain ______ bases1369
- 53. Multiple ChoiceWhich is the organelle that makes proteins?NucleusRibosomesRough ERGolgi Apparatus
- 54. Multiple Choice
If a strand of DNA had bases in the following order - ATCCGTC, what would be the transcribed mRNA sequence?
TAGGCAG
UAGGCAG
TUGGCUG
None of the above are correct
- 55. Multiple Choice
Use the codon chart to determine the amino acid sequence: (Hint: mRNA must be used to determine the AA sequence!)
ATT CGC ATC
TAA GCG TAG
AUU CGC AUC
UAA GCG UAG
tyrosine, alanine, stop
stop, alanine, tyrosine
start, arginine, methionine
Isoleucine, arginine, isoleucine
- 56. Multiple Choice
What is the correct order for the following events that occur during protein synthesis?
B,E,A,C,D
B,A,E,C,D
D,A,E,C,B
C,B,A,E,D
- 57. Multiple Choice
Which of the following polypeptides are coded for by the mRNA sequence
5' AUG GUU AAA 3'
Val, Lys, Phe
Met, Asp, Phe
Met, Val, Lys
Ile, Gln, Lys
- 58. Multiple Choice
A sequence of a DNA template strand is shown.
3' TCC AAT GGC TTA TTT 5'
Which of these is the correct amino acid chain produced from the DNA template strand?
Arginine, Leucine, Proline, Asparagine
Tryptophan, Phenylalanine, Leucine
Serince, Leucine, Proline, Asparagine
Tryptophan, Phenylalanine, Leucine, Glycine
- 59. Multiple ChoiceWhich process is happening in this picture?TranscriptionTranslationReplication
- 60. Multiple ChoiceWhat amino acid is represented by the codon CAG?Aspartic AcidHistidineGlutamineMethionine
- 61. Multiple ChoiceWhat is the correct amino acid for the following codon:
UGAStopMetAspAla - 62. Multiple ChoiceWhat mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-ASubstitutionDeletionInsertionFrameshift - 63. Multiple ChoiceWhich of the following would result in a frameshift mutation?Insertions onlySubstitution onlyDeletion onlyInsertions and Deletions
- 64. Multiple Choice
Which Karyotype displays a female with Down syndrome?
- 65. Multiple ChoiceDNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.SubstitutionDeletionInsertionInversion - 66. Multiple Choice
A mutation is defined as:
A change in the cell's structure
Anything that changes in an embryo
Any change in the physical features of a human
A change in the DNA sequence
- 67. Multiple ChoiceATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of aInsertion- FrameshiftDeletion- SubstitutionDeletion -FrameshiftAll of the above - 68. Multiple ChoiceWhy are insertion and deletion (frameshift) mutations so harmful?They change all of the codons from the mutation on down the line, which changes the amino acid sequenceThey insert things that an organism doesn't need.They often delete things that organisms need.Insertion and deletions are not any more harmful than substitution mutations.
- 69. Multiple Choice
What is it called when a mutation has no effect on the amino acid sequence in the final polypeptide?
Substitution mutation
No mutation
Silent mutation
Replication mutation
- 70. Multiple Choice
What type of chromosomal mutation removes genes and then re-attaches the genes backwards?
Duplication
Inversion
Deletion
Translocation
- 71. Multiple Choice
What type of chromosomal mutation gains extra genes that it did not have before?
Duplication
Inversion
Deletion
Translocation
- 72. Multiple Choice
What does a missense mutation do?
Changes one amino acid to a stop codon.
Changes one amino acid to a different amino acid.
Changes one amino acid to a start codon.
It does not change the amino acids.
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