UV radiation can directly cause the DNA within cells to mutate, which may eventually lead to the formation of cancer. Which of the following best describe mechanisms for how UV radiation may lead to cancer? Choose 2 answers: (Choice A) UV radiation may cause negative regulators (tumor suppressors) to be under-expressed. (Choice B) UV radiation may cause positive regulators (oncogenic) to be over-expressed. (Choice C) UV radiation may cause cells to complete cytokinesis after M phase. (Choice D) UV radiation may force cells to go through specific checkpoints in the cell cycle.

i think that c)gold was found there

but i am not sure

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

the correct answer is b