DNA cont. Flashcards
introns
noncoding regions of dna/rna
exons
coding regions translated and expressed
spliceosomes
cut out introns, joins exons
what are added to the primary transcript to protect him digestion
5’ cap, 3’ poly a tail from poly a polymerase (made of adenine ribonucleotides)
mutagens
chemicals/radiation that increase likelihood of a mutation occurring
purines pair with pyrimidines to increase ______
stability
bacterial plasmids
extra chromosomal dna in the cytoplasm of bacterial cells
selection site
gene for antibiotic resistance
endosymbiotic relationship
both benefit
- eg. bacteria and plasminds
cloning region
high in restriction sites where restriction enzymes cut. genes are inserted
where is the gene inserted after the plasmid is cut
into plasmid dna
- ends are complementary to the opened plasmid
hoe many hydrogen bonds are between c and g
3
how many hydrogen bonds are between a and t
2
what kind of bond is between phosphates and sugars
phosphodiester
what kind of bond is between bases
hydorgen bonds