Enzymes function as catalysts by ________.
A. concentrating the substrates and correctly orienting them at the active site
B. concentrating the substrates together at the active site
C. correctly orienting the substrates at the active site
D. None of the choices are correct.
Answer: A
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Which of the following best explains Mendel's Law of Segregation?
a. Both alleles are put into a gamete, and during development, the two gametes segregate by chance. b. If someone is heterozygous, they exemplify Mendel's Law of Segregation. c. Of the two copies of each gene everyone carries, only one of the two alleles gets put into each gamete. d. Organisms have one copy of a gene, and they place that copy into each gamete during the process of meiosis. e. Both gametes and fertilized eggs have two copies of each gene.
Why is methicillin-resistant Staphylococcus aureus (MRSA) methicillin resistant?
a. The bacteria are able to prevent entry of the drug into the cell. b. It has an enzyme that destroys methicillin. c. It actively pumps the antibiotic out of the cell. d. It produces a modified version of the molecule that is targeted by the drug.
Would it ever be possible for two humans to have identical "DNA fingerprints"?
a. yes b. no
Following mitosis, the daughter cells are identical to the parent cell.
Answer the following statement true (T) or false (F)