In a scientific experiment, large sample sizes decrease _______ and a ________ allows a standard of comparison for the experimental group.
a. test, hypothesis
b. credibility, sampling error
c. sampling error, control group
d. control group, sampling error
e. none of the above
Ans: c. sampling error, control group
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Eating and digesting a candy bar for energy during a sports event is a good example of
a. catabolism. b. anabolism. c. converting kinetic energy into potential energy. d. metabolism. e. converting potential chemical energy into kinetic chemical energy.
In the garden pea, Mendel found that tall (D) green pods (G) and inflated pods (C) were dominant to
their alleles, dwarf (d) yellow pods (g) and constricted pods (c). Given the following genotypes, determine the chances of producing the offspring shown. (a) DD Gg Cc ? Dd Gg cc ? DD gg Cc (b) DD Gg Cc ? Dd Gg Cc ? tall green pod, constricted pod (c) Dd Gg Cc ? Dd GG cc ? tall green pod, inflated pod (d) Dd Gg Cc ? Dd Gg Cc ? D__ G__ cc (e) Dd Gg Cc ? Dd gg CC ? D__ G__ C__ (f) Dd gg cc ? DD Gg cc ? tall green pod, inflated pod (g) Dd Gg Cc ? Dd Gg Cc ? Dd Gg Cc (h) Dd Gg Cc ? Dd Gg Cc ? dd gg cc What will be an ideal response?
Explain the respective advantages associated with operons being inducible (e.g., the lactose operon) or repressible
(e.g., the tryptophan operon). What will be an ideal response?
________ techniques are based on recreating a microenvironment in the laboratory to promote the growth of a microorganism formerly restricted to a small ecological niche.
A. Enrichment culture B. Fastidious growth C. Community growth D. PCR