Aristotle believed that
A. all species are equal in complexity.
B. living organisms can be arranged based on their order of increasing complexity.
C. every species on Earth has a perfect or "essential" form.
D. life originated from inorganic substances.
Answer: B
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scent label. What is the advantage of using two labels for the microarray probes? The two labels _____. A) increase the sensitivity of the microarray B) allow the analysis of the expression of more genes C) allow simultaneous assay of levels of DNA and RNA D) allow comparison of gene expression between two samples
Match the following items with the correct phrases.
_______1. The “building blocks” are held together by glycosidic bonds. _______2. Composed of “building blocks” that contain phosphorous. _______3. Polymers that are composed of amino acids. _______4. Enzymes are examples. _______5. Cellulose, glycogen, and starch are examples. _______6. The “building blocks” are held together by peptide bonds. a. polypeptides b. polysaccharides c. nucleic acids d. substrates
Fertilization of an ovum normally occurs in the
A. uterus. B. ovary. C. oviduct. D. vagina. E. cervix.
How does a competitive inhibitor slow enzyme catalysis?
a. They bind to the substrate. b. They compete with the substrate for the enzyme's active site. c. They produce products toxic to the enzymes. d. They degrade the substrate.