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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 Choice
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount ofcytosineguaninethymineuracil - 3. 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
- 4. Multiple ChoiceWhat mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-ASubstitutionDeletionInsertionFrameshift - 5. Multiple ChoiceATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of aInsertion- FrameshiftDeletion- SubstitutionDeletion -FrameshiftAll of the above - 6. Multiple ChoiceRNA is read in sections called:TripletsGenesCodonsGenes
- 7. Multiple ChoiceTranscription is a process that in eukaryotic cells takes place in the:NucleusCytoplasmGolgi ApparatusRough E.R.
- 8. Multiple ChoiceTranslation is a process in eurkaryotic cells takes place in the:CytoplasmNucleusNucleolusGolgi Bodies
- 9. Multiple ChoiceThe main function of tRNA is to...carry a message that, when translated, forms proteinsform a portion of ribosomesstring together complementary RNA and DNA strandsbring amino acids from the cytoplasm to the ribosomes
- 10. Multiple ChoiceWhat amino acid is represented by the codon UUA?PhenylalanineTyrosineLeucineStop codon
- 11. Multiple ChoiceWhat process is going on in this photo?TranscriptionTranslationReplicationAll the above
- 12. Multiple Choice
What is the group of 3 unpaired bases that is complentary with the mRNA and is how tRNA is able to deliver the correct amino acid to the ribosome?
Codon
Anticodon
Polypeptide
Gene
- 13. Multiple Choice
In DNA replication, if the original sequence reads AATTTGCGCCCAAT, the complementary DNA strand would read?
AAUUUCGCGGGUUA
AATTTGCGCCCAAT
TTAAACGCGGGTTA
UUAAACGCGGGUUA
- 14. Multiple Choice
For proteins to be made, DNA must be copied into________.
Chromosomes
Chromatin
RNA
cytoplasm
- 15. Multiple Choice
Once the DNA is copied into RNA, it goes to what organelle to begin protein synthesis?
nucleus
rIbosome
cytoplasm
centriole
- 16. Multiple Choice
A mutation is a _______________ in the nucleotide base sequence of a gene.
wrinkle
change
bump
tumor
- 17. Multiple Choice
Which of the following nucleotides is NOT present in the mRNA strand after transcription?
A
T
U
G
- 18. Multiple Choice
Which of the following statements best describes why a change in only one DNA nucleotide base of a gene on the DNA strand could result in an incorrect protein being produced by the gene?
The change prevents mRNA from being made.
The change causes cells to divide in an uneven way.
The change creates an additional mRNA strand.
The change alters the amino acid sequence coded for by the
gene.
- 19. Multiple ChoiceIn RNA, Uracil pairs with ______.cytosineadenineguaninethymine
- 20. Multiple ChoiceChoose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCAUATUAGAACGACTGCAUCAGUCATCAGT - Answer choicesTagsAnswer choicesTags