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

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology