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14 terms

AP BIO CH9

STUDY
PLAY
A virus that infects bacteria is called a
bacteriaphage
the basic units of dna and rna molecules are the
nucleotides OR nitrogen bases
watson and crick created 3d....in a process called
model building
xray crystallographs
rosalind franklin
purines take up ___ space
more
bc dna is continuous, the info of each nucelotide pair must lie in the ___ sequence of the nitrogenous bases
linear
ori
where dna rep begins
DNA polymerases catalyze many polymerizations each time they bind to a DNA molecule. Therefore, DNA polymerases are said to be ____
PROCESSIVE
repetitive sequence at the end of many chromosomes are called ____
telomeres
enzyme found in 90 percent....cancer cells is
oncogene
The ___ function of DNA polymerase reduces the num of mistakes
proofreading
an enzyme that catalyzes the addtion of any lost telomere sequences
telomerase
Mutations that exhibit the altered phenotype under certain restrictive conditions are referred to as ____ mutations
conditional
The TP53 gene normally functions....the mutated TP53 gene will ___ the cell cycle
promote