Explain various denaturation/renaturation processes associated w/ DNA
Molecular hybridization: renaturing two DNAs or DNA:RNA from different sources
Fluorescent in situ Hybridization (FISH): fluorescent ssDNA or RNA is used as a probe to identify specific chromosomal locations of genetic information
Reassociation Kinetics and repetitive DNA: DNA is fragmented and dissociated, then allowed to reassociate. Can show/explain various levels of repetitive DNA in a genome. (more pieces [more repeats]= faster reassociation)
Define hyperchromatic shift, melting temperature
Hyperchromatic shift: the increase in the UV absorption as DNA denatures from ds to ss
Melting temperature: the point at which 50% of the DNA strands are unwound or denatured for a given piece of DNA
Describe the three distinct classes of RNA sequences that make up eukaryotic organisms
rRNA: structure components of ribosomes
mRNA: carry genetic information from DNA to ribosome
tRNA: carries amino acids to ribsome during translation