DNA and RNA
For the test tomorrow!
How do we know a nucleotide is a sugar?
What question does this answer?: it's a ring of C and water and O attached to it, it's a pentagon, it ends in -ose, has the tight ratio
one ring and two rings
What is a structural difference between the 4 base molecules? (rings?)
In a nucleotide, the base is connected to carbon #______?
In a nucleotide, carbon #______ determines whether it is DNA or RNA.
In a nucleotide, the prosphorous group connects carbon #_______.
the building blocks of nucleic acid
a nitrogen rich molecule
Adenine and Guanine
Name the 2 purines (spell out)
Cytosine, Uracil, and Thymine
Name the 3 pyrimidines (spell out)
How many rings do purines have?
How many rings do pyrimidines have?
double stranded, double helix
Watson and Crick model states that DNA's structure is a ____________ ______________.
Watson and Crick
Who figured this out?: #Phosphate=#Sugar=#Bases
other biological molecules are also polymers
Watson and Crick had a high certainty that DNA was a polymer since...?
Watson and Crick
Who figured this out?: #A-#T and #G=#C
The only way for #A-#T and #G=#C to be true is if there are two s___________.
Due to hydrogen bonding, the DNA double strand has an a_______________ structure.
twisted, double helix
To fit DNA in a small nuclear package, it must be t____________. Since there are two sides, each side is spiraled, to make a d_______ h________
if you know the sequene of bases on one side of the DNA strand, you automatically know the other side (complementary)
b/c you never know which base could come next, this makes an infinite variety of traits in an infinite variety of traits
the sugar of DNA
the Sugar of RNA
A G C T
the bases of DNA
A G C U
the bases of RNA
ds dh, antiparallel
the structure of DNA (abreviate)
the structure of RNA
location of DNA
all over the cell
location of RNA
function of DNA
function of RNA
the process of making a copy of the DNA
NAME THE SCIENTIST: trying to find a vaccine against pneumococcus bacteria
NAME THE SCIENTIST: seperated Type S into protiens and nucleic acid to determine why the live R had changes into live S
Hershey and Chase
NAME THE SCIENTISTS: working with bacteriophage, added radioactive sulfur and phosphorous to the culture of the growing virus
protien contains s_________ atoms in some of the R chains, but never contains phosphorous!
Nucleic acid contains p____________, but NEVER contains sulfur.
TAC (AUG in mRNA)
In protien synthesis, the start codon is ____