The ____ provides evidence that RNA molecules generated the first proteins
a. redundancy of the genetic code
b. ability of rRNA to catalyze the formation of peptide bonds between amino acids
c. polymerase activity of some ribozymes
d. cleavage of mRNA molecules by rRNA
e. physical structure of polypeptides
ANSWER: b
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Which rickettsial disease can be transmitted by contaminated milk?
A) ehrlichiosis B) typhus C) Q fever D) Rocky Mountain spotted fever
Of the clinically significant Bartonella species, which is transmitted via a fleabite with the reservoir being rats?
a. B. bacilliformis b. B. henselae c. B. elizabethae d. B. clarridgeiae
The term for a cross that involves just one trait, such as pod shape, is called a
a.) homozygous cross. B.) test cross. C.) monohybrid cross. D.) dihybrid cross.
The basic subunits of DNA are the ________
Fill in the blank(s) with correct word