DNA/RNA Structure
Transcription
Translation
Mutations
100
Name the 5 nitrogenous bases.
100
Which DNA strand is transcribed?
The DNA template strand
(NOT the DNA coding strand)
100
What determines which amino acid is added?
mRNA codons
(NOT tRNA anti-codons)
100
Name 5 types of mutations.
Silent, Missense, Nonsense, Deletion, Insertion
200
What are the nucleotide base pairs in DNA - mRNA transcription?
Adenine - Uracil
Guanine - Cytosine
200
Where does transcription take place inside the cell?
Nucleus
200
What is it called when multiple amino acids bond together?
A polypeptide chain, which forms a protein
200
Which mutation codes for a STOP codon?
Nonsense
300
Name the 3 parts of a nucleotide.
300
What enzyme unwinds the DNA double helix to prepare it for transcription?
RNA polymerase
300
Where does translation take place inside the cell?
Ribosome
300
How are silent and missense mutations different?
Only missense mutations change the amino acid.
400
Name 2 ways DNA and RNA structure is different.
DNA: double helix, deoxyribose sugar, and thymine
RNA: single helix, ribose sugar, and uracil
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400
Transcribe this.
DNA coding strand: ATGCTA
DNA coding strand: ATGCTA
DNA template strand: TACGAT
mRNA strand: AUGCUA
400
Which amino acid does GCU code for?
Ala
400
What type of mutation is shown here?
Deletion Mutation
500
Why can't Adenine bond with Cytosine?
The molecules have different number of hydrogen bonds.
500
If the mRNA strand has codon UAG, what is the DNA coding strand?
DNA coding strand: TAG
DNA template strand: ATC
mRNA strand: UAG
500
Name 6 codons that code for Leu.
UUA, UUG, CUU, CUC, CUA, CUG
500
What type of mutation is shown here?
Insertion Mutation