What is one component that is needed to perform a PCR?
A. primers
B. DNA ligase
C. RNA polymerase
D. deoxynucleoside triphosphates
A
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Which of the following statements is false?
a. Root hairs live only a few days b. Nodules containing bacteria enable plants to increase their absorption of nitrogen. c. The Casparian strip of the endodermis facilitates the movement of water into the vascular cylinder. d. Water may travel between the cortex but must move through the cytoplasm of endodermal cells. e. Some plants have an exodermis with a Casparian strip.
The leading cancer killer of women is
a. ovarian. b. uterine. c. breast. d. lung. e. bone.
What is the chemical in tobacco smoke that's able to activate the brain's reward pathways, thus making smoking a very addictive process?
What will be an ideal response?
Select the best response to the question. ?Which of the following patients is at high risk of becoming ill from a pathogen with low virulence?
A)A patient with cancer undergoing chemotherapy. B) A patient with otitis media (ear infection). C) A patient who has had very few illnesses. D) A patient with a laceration.