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27 Cards in this Set

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  • Back
  • 3rd side (hint)
Who is Griffith and Avery?
They showed the transfer of genetic information between bacteria using mice
Griffith could be thought of as a name of a certain animal that has a lot to do with the answer
Who is Hershey and Chase?
used radioactive labeling of protein and DNA to prove that DNA is the genetic material
Hersheys chocolate bars...
Who is Watson and Crick?
discovered the double helix structure of DNA
they used everyone else's research to draw their conclusions
Who are meselson and stahl?
they demonstrated the semi-conservative replication of DNA by using a heavy nitrogen isotope
no hint
Who is Chargaff?
performed experiments to show how the nitrogenous bases pair
A=T, G=C
Chargaff=Gaff Char
Who is Rosalind Franklin
photos of DNA with crystallography
no hint
the blueprint of all life...largest molecule in the cell
no hint
nitrogenous bases
pyrimidines (C and T have single ring structures)and
Purines (A and G have double ring structures)
no hint
what is a gene
a sequence of nucleotides that code for a certain protein or character trait
no hint
What is a codon
three messenger Rna nucleotides which form a specific code for a given amino acid
3 make up a ______
What is an anticodon
three transfer RNA nucleotides which base pair with their complementary codon on the messenger RNA; the amino acid attached to the tRNA is then able to attach to the growing peptide chain
no hint
what is the central dogma?
the processes of replication transcription and translation
it includes three processes
replication is...
a process by which DNA copies itself in preparation for cell division
what is transcription
it is a process by which DNA is copied to mRNA so that the information can be used to construct proteins
translation is...
process by which the information encoded on the mRNA is "read" and a protein assembled
think of what the word means compared with the meaning of Transcription
what is meant by the semi-conservative nature of DNA replication
when the parent strand is physically divided and used in two daughter strands
semi-conservative vs. conservative (meselsohn and stahl)
what is the gyrase?
it unwides or relazes the torque (double helix) of DNA
G comes before H
what is the helicase?
opens the double helix of DNA
H comes after G
binding proteins are...
what hold the double helix open
know the 3' and 5' concept
in replication, the process reads 3' to 5' and builds 5' to 3'
what is the RNA primer and the RNA primase?
the primase prepares the primer so that the primer can connect to DNA to start replication on leading and lagging strands
a comes before e
DNA polymerase III
catalyzes DNA replication; requires RNA primer to start (can't initiate)
DNA polymerase II
DNA polymerase I
replaces RNA primers on Okazaki fragments
Okazaki fragments
on the lagging strand of DNA, interupted replication. Named for discoverer
DNA ligase
binds the Okazaki fragments together
True/False: DNA does not carry the genetic information of the cell