Chapter 13 Flashcards Preview

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Flashcards in Chapter 13 Deck (19):
1

What are the 4 criteria that genetic material must fulfill

INformation
Transmission
Replication
Variation

2

Griffith's experiment

showed that the genetic material from type S bacteria could transform type R bacteria into type S

3

Avery, MacLeod, and McCarty's experiment

discovered that the transforming substance is DNA

4

Hershey and Chase's experiment

determined that the genetic material of T2 phage is DNA

5

When a base is attached only to a sugar we call this pair a

nucleoside

6

one or more phosphate groups, a sugar, and a base

nucleotide

7

In a DNA strand, nucleotides are covalently attached to one another via ____ linkages

phosphodiester

8

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

9

Pauling used ball-and-sick models to deduce the

secondary structure of a protein

10

Franklin

performed x-ray diffraction studies that helped to determine the structure of DNA

11

Chargaff

determined that in DNA, A=T and C=G

12

Watson and Crick

deduced the structure of DNA by building models that were consistent with the available data

13

DNA is usually a ___ double helix

right-handed

14

The two strands of DNA are antiparallel and contain ___ basepairs per turn

ten

15

Base stacking also stabilizes the double helix of DNA by excluding _____

water

16

The spiral structure of DNA has a ____ and _____ grooves

major and minor

17

____ is the major form of DNA found in living cells

B DNA

18

____ is the alternative form of DNA, it has a left-handed conformation

Z DNA

19

A strand of nucleotides that can form double stranded helical regions and fold into 3D structures

RNA