UMN GCD 3022 Exam 2/ University of Minnesota-Twin Cities| Updated Rated A+ | NEW

UMN GCD 3022 Exam 2/ University of Minnesota-Twin
Ci es| Updated Rated A+ | NEW

informa on, transmission, replica on, varia on

four criteria gene c material must meet

Avery, MacLeod, McCarty Experiment

demonstrated that DNA is the gene c material because degrada on of DNA led to a cessa on
of bacterial transforma on

nucleo des

form repea ng units

strand

nucleo des linked to form this

double helix

two strands of DNA interact to form this

protein, DNA

chromosomes contain these

DNA, RNA

types of nucleic acids

phosphate group, pentose sugar, nitrogenous base

components of nucleo des

presence of OH group at 2' loca on

difference between DNA and RNA

uracil instead of thymine

RNA differs from DNA in that it uses

phosphodiester linkage

connects nucleo des together (5' carbon to 3' carbon)

, phosphates and sugar

backbone of nucleic acids

phosphate

5' end group

hydroxyl

3' end group

Linus Pauling

proposed alpha-helical structure for proteins, use of physics models

Franklin and Wilkins

x-ray diffrac on studies of DNA structure

Erwin Chargaff

base pairing

x-ray diffrac on

suggests helical structure, too wide for single-stranded helix, 10 base pairs per turn of helix

Watson and Ccrick

ball and s ck model, published descrip on of structure of DNA

DNA structure

two strands, base pairing, an parallel strands, 10 nucleo des per 360 degree turn

RNA structure

usually single-stranded, can be par ally double stranded, ter ary

chromosome

structures that contain the gene c material

bacteria chromosome

single circular

genome

comprises all the gene c material an organism possesses