In eukaryotes, genes involved in transcription and translation are derived from
A. ancient bacteria.
B. primitive RNA.
C. archaeal ancestors.
D. mitochondrial genomes.
C. archaeal ancestors.
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Untreated streptococcal pharyngitis can lead to all of the following except ________.
A. rheumatic fever B. glomerulonephritis C. scarlet fever D. otitis media
Which reaction breaks down large molecules into
smaller molecules? a. synthesis b. cleavage c. condensation d. polymerization e. both cleavage and condensation
The skeletal system performs four of the following functions. Which is NOT one of the skeletal system’s functions?
a. supporting and protecting body parts b. being a site for muscle attachment c. producing red blood cells d. maintaining body temperature e. storing minerals
Each of the following activates a receptor tyrosine kinase except
A) EGF. B) PDGF. C) TGF? D) FGF. E) Insulin.