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15 Cards in this Set

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  • Back
What is TRANSFORMATION?
process when one strain of bacteria is changed by a gene from another strain of bacteria
What is BACTERIOPHAGE?
Virus that infects bacteria
What is a NUCLEOTIDE?
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
What is BASE PAIRING?
principal that bonds in DNA Can form only between adenine and thymine or guanine and cytosine
Give an example of TRANSFORMATION:
The griffith experiment...isolating diferent types of mice..harmful/ harmless
What is Griffith's hypothesis?
If you mix smooth-heated and add it to rough- transferred fromharmful to harmless
What was Avery's conclusion?
Dna was the transforming factor
Who were Hershey and Chase?
They studied viruses that can infect living organisms
What is the structure of DNA?
Nucleotide...deoxyribose, phosphate, nitrogenous base
What are Chargaff's rules?
A(ADENINE) = t(THYMINE)

g( GUANINE) = c (CYTOSINE)
Who was Rosalind Franklin?
SHE STUDIED x-rAY DIFFRACTION

to record the scattering pattern on film
Who are Watson & Crick?
They built the double-helix structure of DNA
What is an ENZYME?
Protein that speeds up a chemical reaction
What does a Helicase enzyme do?
Breaks down the hydrogen bonds between nitrogenous bases
What did Avery discover?
DNA is the nucleic acis that stores and transmits the genetic information from generation to generation