Groups of three bases on a mRNA molecule
What is Codon?
The type of mutation that occurs when one base is replaced by another.
What is a substitution or point mutation?
Two processes that happen in the nucleus involving DNA
What are DNA Replication and Transcription?
The bond between nitrogen bases that allows them to be easily unzipped
What is an hydrogen bonds?
What is the complementary DNA Strand to:
A T C G T C A T
T A G C A G T A
Why might a point mutation NOT cause a change in a protein (silent mutation)? (Hint: think of amino acids)
What is if the change does not change the amino acid it codes for?
Where do each of the following occur in the cell:
Replication?
Transcription?
Translation?
Replication - nucleus
Transcription - nucleus
Translation - ribosome (in the cytoplasm)
What amino acid does the mRNA AGU code for?
What is Ser (Serine)?
The original strand of DNA is ACC TTG CGA The mutated strand of DNA is ACC TTC GA
a) How many amino acids are changed? (from the original strand)
b) This is a _______________ mutation.
2
frameshift
What amino acids does the following sequence code for?
TAT GGG
mRNA: AUA CCC
Amino acid: Ile - Pro