Important Terms

mitochondrial DNA (mtDNA)

chloroplast DNA (cpDNA)

supercoiling

relaxed state of DNA

positive supercoiling

negative supercoiling

topoisomerase

nucleoid

euchromatin

heterochromatin

nonhistone chromosomal protein

nucleosome

linker DNA

polytene chromosome

chromosomal puff

epigenetic change

telomeric sequence

shelterin

C value

C-value paradox

denaturation (melting)

melting temperature (Tm)

renaturation (reannealing)

hybridization

unique-sequence DNA

gene family

repetitive DNA

moderately repetitive DNA

tandem repeat sequence

320

interspersed repeat sequence

short interspersed element (SINE)

long interspersed element (LINE)

highly repetitive DNA

endosymbiotic theory

heteroplasmy

replicative segregation

homoplasmy

D loop