What trait distinguishes semiperishable foods such as potatoes and nuts from perishable foods such as meats?
a. carbohydrate/sugar content
b. natural microbial flora content
c. salt content
d. water activity/moisture content
Answer: D
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Which molecule combines with proteins to form both the large and small ribosomal subunits?
A. DNA B. RNA polymerase C. miRNA D. rRNA E. tRNA
The amino acids of a growing polypeptide chain are held together by what kind of bond during the elongation stage of translation?
A. hydrogen B. peptide C. glycosidic D. noncovalent E. lactose
Capases are ____ that are active in the first stages of ____
a. genes; polarity establishment b. genes; cancer c. transcription factors; cancer d. hormones; apoptosis e. proteolytic enzymes; apoptosis
Is reverse transcriptase a RNA-dependent DNA polymerase, or a DNA-dependent DNA polymerase?
A. It is neither. Reverse transcriptase is actually a DNA-dependent RNA polymerase. B. It is a RNA-dependent DNA polymerase. C. It is a DNA-dependent DNA polymerase. D. It is both a a DNA-dependent DNA polymerase and a RNA-dependent DNA polymerase.