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Nucleic Acid set 1

Nucleic Acid Module set 1

QuestionAnswer
Structure contains nitrogenous basesA, G, C, U, pentose sugar, ribose, usually consists of single strand, can coil back on itself, forms hair-shaped structures with complementary base pairing and helical organization, base pairing rules A with U and G wit RNA
contains a nitrogenous base and pentose sugar nucleoside
are the three types of RNA that differ from each other in function, site of synthesis in eucaryotic cells, and structure mRNA, tRNA, rRNA
All genetic material of an organism genome
Genomes of bacteria consist of Chromosomes
Allow transfer of genes between cells fertility factors
Resistance to antibiotics or heavy metals resistance factors
For bacteriocin toxins to kill other bacteria bacteriocin factors
Provide functions involved in pathogenesis virulence factors
Single DNA molecule, No histones, Haploid(No dominance/recessiveness), Located in the nucleoid, 4,377 genes in E. coli (1mm of DNA in 1μm of space) Bacterial Chromosome
It can be copied,It can be expressed,It can be changed,It can be repaired if damaged, and It can be recombined/exchanged are the five things that can happen to genetic information
usually exists as closed circular, supercoiled molecule associated with basic proteins Procaryotic DNA
Allows DNA to fit in the cell and Helps control access to DNA supercoiling
molecules responsible for supercoiling and relaxing DNA,Ex. Gyrase Topoisomerases
linear molecules,associated with histones,coiled into repeating units called nucleosomes eukaryotic DNA
Within each cell genetic information flows from DNA to RNA to protein
This flow of information is unidirectional and irreversible
Conversion of DNA encoded information to RNA is called transcription
Conversion of information from mRNA to protein is called translation
Nucleotide sequence in DNA dictates the end product (protein) synthesis-called genetic code
Created by: kprout
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