Which virus causes a cell to produce proteins that bind to tumor suppressors and prevent them from working?
A. Human papillomavirus
B. Human immunodeficiency virus
C. Rhinovirus
D. Bacteriophage
E. Hepatitis C virus
Answer: A
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Isotopes that are unstable and decay when their nucleus breaks up into elements with lower atomic numbers, emitting significant amounts of energy in the process, are called:
A. energetic B. ionic C. radioactive D. isometric
Which of the following is a step during translation?
a. initiation at the promoter region b. elongation by adding nucleotides to the growing chain c. termination at the terminator sequence d. termination at the stop codon
A developer putting tract housing in a previously pristine area plans numerous small open space areas
where the original habitat is to remain. As a conservationist, how would you suggest changing the plan, if at all? (Canceling the development is not an option.)
What will be an ideal response?Which of the following is most limiting for plant growth, especially in relation to the plant's carbon uptake?
A. magnesium B. calcium C. phosphorous D. potassium E. nitrogen