AP BIO CH9

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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

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