DNA Polymerase can only add nucleotides to a pre-existing strand
400
List the 3 major difference between DNA and RNA
1. U instead of T
2. Single stranded
3. Sugar is ribose instead of deoxyribose
400
The following is an anticodon: GUA
Which would be the ultimate amino acid that matches this anticodon?
Codon: CAU--> Amino acid: Histidine
500
Why were bacteriophages the perfect microorganism to use when determining what the hereditary molecule is?
(Think about what they're made of)
Bacteriophages are made up of only DNA and Proteins--> scientists were trying to determine if proteins or DNA were the hereditary molecule.
500
How many carbon rings does a purine have? Pyrimidine?
Which bases are the purines? Which bases are the pyrimidines?
MUST HAVE ALL PARTS TO GET THE POINTS
Purine: 2 rings; Pyrimidine: 1 ring
Purines: A and G; Pyrimidine: C and T
500
_____________ is the enzyme that links the _____________ strands together. These shorts strands are more specifically known as __________ ___________.
Ligase, lagging, Okazaki fragments
500
Transcribe the following strand of DNA into mRNA. Circle each codon in the resulting mRNA transcript.
T A C C C G T C A C A G A T T
A U G G G C A G U G U C U A A
____ ____ ____ ____ ____
500
How does the cell/ribosome ensure the correct amino acid is added to a growing amino acid chain?
The anticodon on a tRNA matches up with the codon on the mRNA. The correct tRNA molecule is carrying an amino acid that corresponds to the mRNA codon.