What is the most efficient way to regulate gene expression from the perspective of cellular resources? What will be an ideal response?
From a cellular resource perspective, the best way to regulate gene expression is to prevent
transcription. Any energy put into producing a gene is wasted if the gene is product is not ultimately
expressed and useful. Therefore, it is best to prevent gene expression at the first possible step,
transcription, in order to save cellular resources.
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During acetyl-CoA synthesis, pyruvate is:
A. reduced. B. oxidized. C. phosphorylated. D. hydrogenated. E. carboxylated.
Which phrase defines the function of smooth muscle?
A. slow, involuntary movements in multiple organs B. skeletal movement C. heart contraction D. flexible support E. connects muscle to bone
In passive transport, molecules move from an area of ________ concentration to an area of ______ concentration
a. High, low b. Low, high c. No, some d. Orange juice, pineapple juice
Kudzu, an Asian vine introduced to the United States in the 1930s as a means to control erosion, is referred to as "the plant that ate the South" because it grows so fast and overtakes most plant species in its path
A recent and unusual way that some people are using to control kudzu growth is to allow goats to graze their land and eat the kudzu, roots and all. This is considered by some to be the most environment-friendly way to eliminate this invasive vine. How can we best describe the goats in this situation? A) a threatened species B) an invasive species C) a biological control agent D) an integrated pest management agent