DNA Processes: DNA Structure Flashcards
What did Gregor Mendel do?
He determined that traits/genes were passed from generation to generation.
What did Fredrick Griffith Do?
Discovered that dead toxic bacteria can pass their toxic substance onto living harmless bacteria
What did Oswald Avery determine?
That genes are made of DNA and not proteins
What did Erwin Chargaff do?
Discovered that the amount of A=T, and the amount of C=G
What did Rosalin Franklin and Maurice Wilkins discover?
Used X-Ray technology to determine that DNA is a double helix
What did Watson and Crick do?
They created a physical model of DNA using Franklin and Wilkins research
What is the structure of a nucleotide?
Phosphate group, pentose sugar, nitrogen base
Purines
Adenine, Guanine
Pyrimidines
Thymine, Cytosine
Purpose of DNA?
store and transmit hereditary information
Where do the nucleotides connect to each other?
the nitrogen base
What controls physical appearance?
DNA
What is RNA?
single-stranded nucleic acid that is made up of monomers and assists DNA in storing and transmitting hereditary information
What are the monomers of RNA?
Nucleotides - phosphate, ribose/sugar, and nitrogen base
What are the base pairing rules for RNA?
Adenine+Uracil, Cytosine+Guanine
