The correct order of events in metastasis of a cancer is
A) invasion ? angiogenesis ? transport ? new site
B) transport ? invasion ? angiogenesis ? new site
C) transport ? angiogenesis ? invasion ? new site
D) angiogenesis ? invasion ? transport ? new site
E) angiogenesis ? transport ? invasion ? new site
D) angiogenesis ? invasion ? transport ? new site
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Transgenic animals are referred to as ________ modified organisms.
A. chemically B. genetically C. naturally D. physically
The first human genetic disease to be successfully treated by gene therapy was ________
A) cystic fibrosis B) sickle cell anemia C) chronic myelogenous leukemia D) adenosine deaminase deficiency E) albinism
Indicator bacteria for contaminated water are ________.
A. staphylococci B. all bacteria C. coliforms D. Clostridia
In prokaryotes, the RNA polymerase holoenzyme consists of
A. the core polymerase plus two alpha subunits, two beta subunits, and a sigma subunit. B. two alpha subunits, two beta subunits, and two sigma subunits. C. the core polymerase plus a sigma subunit. D. the core polymerase plus two beta subunits. E. the core polymerase plus two alpha subunits.