Vocabulary
DNA is made up two strands, forming a...?
double helix
The product of transcription is..?
mRNA
The product of translation is...?
proteins!
___ mutations are chemical changes in just one nucleotide pair of a gene.
POINT
What are short squences of DNA called?
Okazaki Fragments
The enzymes that untwist the double helix at the replication ford
Helicases
What direction is the template strand read?
5'-3'
The triplet code that tRNA uses to bring the correct amino acid is called the..?
anti-codon
What could result in a frameshift mutation?
Insertion or Deletion
Why are two identical copies of DNA necessary through DNA Replication?
One for each new daughter cell
What enzyme's job is to add new nucleotides on the 3' end on DNA.
DNA Polymerase
What does the 3' end of the mRNA get modified to have?
Poly A Tail
The function of the ribosome is to...?
create proteins!
A chemical or physical agent that can interact with DNA and cause a mutation is called
mutagen
Complete the sequence that would create the anti-parallel backbone in comparison to this sequence.
3'- P- S- P- S- P- S- 5'
5'- S- P- S- P- S- P- 3'
The strand of DNA that is not transcribed is called the coding strand, the strand that IS transcribed is called...
Template strand
The mRNA created from this sequence:
ATGCCGTACGAATAT
UAC GGC AUG CUU AUA
The monomer of proteins are
A missense mutation changes...
one amino acid to another one
In a given DNA sequence, 36% are adenine bases (A). How much is there of all the other bases?
T= 36%
C= 14%
G= 14%
In bacteria, the sequence signaling the end of transcription is called the...?
terminator
RNA Polymerase is in charge of...
prying apart the DNA strand, and joining the complementary RNA nucleotide to the promoter.
what amino acids would be created from this sequence?
ATG GTA AAC GCG TAG
TYR- HIS- LEU- ARG- ILE
What type of effect would a single nucleotide insertion close to the start of the coding sequence have?
most likely harmful
Meselson and Stahl grew bacteria in various radioactive forms of nitrogen, at the end of ONE ROUND of replication they could conclude:
Replication is not conservative.