Which structure acts like a motor for the bacterial flagellum?

a. hook
b. capsule
c. filament
d. basal body


e. protein rings


d

Biology & Microbiology

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When two traits are analyzed separately, then the frequencies of each are combined to yield the observed phenotypic ratios, this confirms the principle of ____________________

Fill in the blank(s) with correct word

Biology & Microbiology

Contained in amino acids, proteins, nucleic acids, chlorophyll.  

  Choose the letter of the best match: A. nitrogen B. calcium C. potassium D. phosphorus E. magnesium

Biology & Microbiology

DNA contains all of the following nitrogen-containing bases EXCEPT ____

a. adenine b. uracil c. guanine d. adenine e. thymine

Biology & Microbiology

The first site of starch breakdown in the digestive system is

A. the esophagus. B. the mouth. C. in the small intestines. D. in the stomach.

Biology & Microbiology