Chapter 13 Flashcards
What are the 4 criteria that genetic material must fulfill
INformation
Transmission
Replication
Variation
Griffith’s experiment
showed that the genetic material from type S bacteria could transform type R bacteria into type S
Avery, MacLeod, and McCarty’s experiment
discovered that the transforming substance is DNA
Hershey and Chase’s experiment
determined that the genetic material of T2 phage is DNA
When a base is attached only to a sugar we call this pair a
nucleoside
one or more phosphate groups, a sugar, and a base
nucleotide
In a DNA strand, nucleotides are covalently attached to one another via ____ linkages
phosphodiester
The idea that the amount of A is DNA equals the amount of T, and the amount of G equals the amount of C is known as
Chargaff’s rule
Pauling used ball-and-sick models to deduce the
secondary structure of a protein
Franklin
performed x-ray diffraction studies that helped to determine the structure of DNA
Chargaff
determined that in DNA, A=T and C=G
Watson and Crick
deduced the structure of DNA by building models that were consistent with the available data
DNA is usually a ___ double helix
right-handed
The two strands of DNA are antiparallel and contain ___ basepairs per turn
ten
Base stacking also stabilizes the double helix of DNA by excluding _____
water
