Which general organic compound forms ringed carbon structures?
a. Aromatic hydrocarbons
b. Chlorofluorocarbons
c. Aliphatic hydrocarbons
d. Hydrostatic hydrocarbons
a
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Signaling involves molecule A that binds another specific molecule B, often delivering the signal in the process. What do we call molecule A in this scenario?
a. target cell b. receptor c. ligand d. enzyme
Which of the following is the correct sequence of hierarchical taxonomic categories?
A. species - family - genus - domain - order - phylum - class - kingdom B. domain - kingdom - phylum - class - order - family - genus - species C. species - genus - family - order - class - order - phylum - kingdom - domain D. kingdom - class - phylum - order - family - genus - species E. kingdom - class - domain - order - phylum - genus - family - species
How does pressure beneath salt water compare to pressure beneath fresh water at the same depth
What will be an ideal response?
Suppose a researcher is interested in using the CRISPR-Cas9 system to knock out the phosphofructokinase gene of a rat skin cell that codes for an enzyme that is critical for glycolysis to occur. The researcher added the Cas9 enzyme to the cell but forgot
to add the guide RNA. What result do you think the researcher will observe? A) Glycolysis will proceed normally in the cell. B) The phosphofructokinase enzyme will be expressed but will have lower activity. C) Cas9 will specifically cut the phosphofructokinase gene. D) There will be mutations in the phosphofructokinase gene.