Which of the following organelles is thought to
have evolved from a bacterium?
a. nuclei
b. Golgi bodies
c. chloroplasts
d. mitochondria
e. more than one of these
E
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After the results of the chromatography and electrophoresis experiments, can you reasonably conclude that the red shell color is produced by a single red pigment whose synthesis is catalyzed by an enzyme (with an approximate mass of 45 kDa) coded for by the dominant allele?
a. Yes b. No c. You can reasonably conclude that the shell color is produced by a singlepigment, but not that it is catalyzed by an enzyme coded for by the dominantallele.
Allosteric enzymes
a. have active sites where substrate molecules bind and other sites that bind with inhibitor or activator molecules. b. are associated with important energy-carrying nucleotides. c. are not affected by temperature or pH. d. have two active sites. e. all of these.
From what are fruits derived?
A. filaments B. styles C. anthers D. stigmas E. ovaries
If a genetic disorder is caused by a dominant allele, individuals with which of the following genotypes would be affected by the disorder?
a. AA and aa b. aa and Aa c. AA and Aa d. AA, Aa, and aa