Transformation-Griffith’s Expt. 1928. DNA Mediates Transformation. Convert IIR to IIIS By DNA?. Avery MacLeod and McCarty Experiment. Circa 1943. Transforming Principle. DNAse activity. + means that activity is present. All RNA gets degraded during enzyme preparation.
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+ means that activity is present
All RNA gets degraded during enzyme preparation
Proteins are complex macromolecules
composed of 20 (?)
different amino acids.
The genetic information in mRNA molecules is translated into the amino acid sequences of polypeptides according to the specifications of the genetic code.
What does “S” mean?
Why do sizes get bigger?
The genetic code is a nonoverlapping code, with each amino acid plus polypeptide initiation and termination specified by RNA codons composed of three nucleotides.
Repertoire of tRNAs?
Note it is amber su3…why?????????
If there was a single tRNATyr gene, then could one
have a amber supressor of it?
Was this first????
tRNA environment, protein modifications post-translationally
CCATGG (Nco I site and Kozak Rule)
PolyA recog sequence
The Reasons why ATG is a single codon
and TGG is a single codon.