The "language" of the genetic code of RNA uses an alphabet of
a. nucleotide bases.
b. proteins.
c. amino acids.
d. Sugars.
e. phosphate molecules.
A
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________ are responsible for the transmission of a signal between two adjacent nerve cells.
Fill in the blank(s) with the appropriate word(s).
Which of the following bacteria lack a cell wall?
A. Treponema pallidum B. Mycobacterium tuberculosis C. Staphylococcus aureus D. Mycoplasma pneumoniae
As producers, what inputs do plants require for the process of photosynthesis?
a. oxygen and sunlight b. oxygen and carbon dioxide c. carbon dioxide and sunlight d. carbon dioxide, oxygen, and sunlight
Viruses used in live viral vaccinations have the potential to revert to disease-causing forms within a host, effectively causing the diseases they were intended to prevent. What is the name for this reversion?
a. back mutation b. reverse lysis c. retroviral d. devolution