Genetics Ch 8

Question	Answer
nucleotide	repeating unit of DNA and RNA made of a sugar, a phosphate group and a base
Chargaff's Rules	rules concerning ratios of bases in DNA; A=T C=G
transforming principle	substrate responsible for transformation. DNA is the transforming principle
isotope	different forms of an element that have same # of proton but diff # of neutrons
x-ray diffraction	method for analyzing the three-dimensional shape and structure of chemical substances
ribose	5 carbon sugar in RNA; has a hydroxyl group attached to the 2' carbon atom
deoxyribose	5 carbon sugar in DNA ; lacks a hydroxyl group in 2 ' carbon
nitrogenous base	nitrogen-containing base that is one of the three parts of a nucleotide
purine	type of nitrogenous base in DNA and RNA. - Adenine and Guanine
pyrimidine	type of nitrogenous base in DNA and RNA; Cytosine and Thymine, and Uracil
Adenine	Purine base
Guanine	Purine base
Cytosine	Pyrimidine base
Thymine	Pyrimidine base
Uracil	Pyrimidine base
nucleoside	ribose or deoxyribose bonded to a base
phosphate group	a phosphorous atom attached to 4 oxygen atom; of components of a nucleotide
deoxyribonucleotide	basic building block of DNA, consisting of deoxyribose, a phosphate group, and a nitrogenous base
ribonucleotide	basic building block of RNA, consisting of ribose, phosphate group, and a nitrogenous base
Phosphodiester linkage	phosphodiester bond connecting two nucleotides in a polynucleotide strand
polynucleotide strand	series of nucleotides linked together by phosphodiester bonds

Resource summary

	Created by Mickey Lopez over 8 years ago