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2.6 Structure

QuestionAnswer
monomer of nucleic acid neucleotide
three parts of a nucleotide pentose sugar, phosphate group, nitrogen base
nitrogen bases of RNA adenine, uracil, cytosine, guanine
nitrogen bases of DNA adenine, thymine, cytosine, guanine
purine double ring nitrogen base, ex: adenine, guanine
pyrimidine single ring nitrogen base, ex: thymine, uracil, cytosine
relationship between purines and pyrimidines a purine and a pyrimidine always make up a complemntary pair
compare DNA and RNA DNA has deoxyribose, thymine double helix, and double strands. RNA has ribose, uracil, singe helix, and single strands. Both are nucleic acids made up of nucleotides.
structure of DNA double helix linked by hydrogen bonding between complementary nitrogen bases, antiparallel, one side is 3' to 5' and the other is 5' to 3'
bonds of a DNA molecule hydrogen bonds (A+T=2 bonds, C+G=3 bonds) and phosphodiester bonds
Rosalind Franklin used x-rays to produce pictures of DNA, showed DNA has a helical structure
Watson and Crick created the first correct structural model of DNA, showed the double helix, antiparallel nature, and complementary bases
Hershey Chase experiment Radioactively labeled proteins and DNA and proved the DNA transmitted genetic info
Sanger sequencing sequences DNA using dideoxyribose and gel electrophoresis, answer is the complement to the resulting gel sequence
coding sequences of DNA genes that code for particular proteins
noncoding sequences of DNA do not code for proteins 1. introns are not transcribed to mRNA 2. telomeres are repetitive sequences found at the end of chromosomes 3. noncoding RNA make tRNA and rRNA 4. satellite DNA makes tandem repeats
tandem repeats two or more base DNA pairs are repeated, used for DNA profiling
type of cells where neuceosomes are found eukaryotes
function of a nucleosome protects and packages DNA, supercoils DNA for mitosis and meiosis
structure of a nucleosome DNA wound around an octamer (8 histones) and attaches the the H1 histone
Created by: luciepike
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