What would be the most difficult part of using a specific sirna to reduce expression of a human gene involved in the development of cancer or whose product allows for the expression of viral-encoded proteins?
choose one or more:
a. identifying an sirna that is effective in targeting a specific mrna
b. delivering sirna to cells in the body
c. determining the effectiveness of the sirna in cells
d. reducing potentially harmful side effects of sirna activity

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands