The genetic code is said to be degenerate because ____
a. some codons that do not specify an amino acid
b. most amino acids are represented by more than one codon
c. the code varies considerably between different organisms
d. the code is commaless, with no indicators of spaces between codons
e. the code varies considerably between different cell types within a multicellular organism
ANSWER: b
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The cytoplasmic proteins of Halobacterium are
A) highly acidic. B) highly basic. C) generally neutral. D) variable, depending on the species.
In the taxonomic hierarchy, a family consists of a group of similar ____
a. orders b. classes c. species d. genera e. domains
All vertebrates have an __________ system of
secretory glands and cells. Fill in the blank(s) with the appropriate word(s).
The only cytoplasmic organelles besides nuclei that contain DNA are the ____________________. What will be an ideal response?