Gigantism is caused by:
a. hypersecretion of growth hormone during adulthood.
b. hyposecretion of thyroxine during adulthood.
c. hypersecretion of growth hormone during childhood.
d. hyposecretion of thyroxine during childhood.
e. hypersecretion of epinephrine during childhood.
C
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The central dogma of genetics probably developed as a series of steps through evolution, so that the flow of information now generally proceeds DNA —> RNA —> protein.
a. true b. false
What is the most diverse bacterial lineage?
a. Proteobacteria b. Chlamydias c. Cyanobacteria d. Gram-positive bacteria e. Spirochetes
The basic structure of a virus consists of:
a. Genetic information in the form of DNA. b. Genetic information in the form of DNA, a protein coat, and polymerase to replicate its DNA. c. Genetic information in the form of DNA or RNA enclosed within a protein coat, along with a few enzymes. d. Genetic information in the form of RNA, a protein coat, and reverse transcriptase in order to turn its RNA into DNA. e. Genetic information in the form of DNA or RNA enclosed within a protein coat.
Mitochondria are responsible for generating _______ for the cell in the form of _______.
a. cytoplasm; ATP b. energy; glucose c. energy; ATP d. cytoplasm; glucose