Mutations are changes to the information in DNA. What would happen to an enzyme's ability to function if a mutation changed the order of some of the amino acids in its polypeptide chain?
What will be an ideal response?
Like all proteins, the function of an enzyme depends on its shape. The shape of an enzyme is primarily determined by its amino acid sequence. A mutation that changes the amino acid sequence would change the shape of the protein and therefore change or destroy the enzyme's ability to function.
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Which of the following accurately represents the relationship between the terms anabolism,
catabolism, and metabolism? a. anabolism = catabolism b. metabolism = catabolism c. catabolism = anabolism + metabolism d. anabolism = catabolism + metabolism e. metabolism = catabolism + anabolism
What lineage of land plants arose before the bryophytes (mosses)?
A. Nonvascular plants B. Gymnosperms C. Angiosperms D. None of the above
Cells use exocytosis to
A) ingest nutrients. B) pump hydrogen molecules across the membrane. C) create new cells. D) release substances from the cell. E) move away from danger.
Where would a ligand-gated ion channel typically be found on a neuron?
A) Presynaptic membrane B) Axon hillock C) Postsynaptic membrane D) Ligand-gated ion channels are not found on neurons. E) Axon