Who developed the modern endosymbiotic theory?
a. Charles Darwin
b. Lynn Margulis
c. Richard Dickerson
d. Wendy Johnson
e. Stanley Miller
B
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The relationship between strands of RNA and DNA
is a. antagonistic. b. opposite. c. complementary. d. an exact duplicate. e. unrelated.
Cavener and Clegg (1981 ) demonstrated natural selection by observing the cumulative change in allele frequencies in populations of Drosophila melanogaster that were subjected to high levels of ________
A) mercury B) carbon dioxide C) alcohol D) sugar E) nitrous oxide
Ca2+-calmodulin stimulates phosphorylation of myosin by
A) Ca2+-ATPase. B) focal adhesion kinase. C) myosin light chain kinase. D) ryanodine receptor. E) titin.
Each codon on a DNA strand codes for:
A) a single amino acid. B) a protein. C) multiple amino acids. D) a single gene. E) multiple genes.