Biochemical tests are useful in the identification of an unknown bacteria

a. true
b. false


Ans: a. true

Biology & Microbiology

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Based on the fossil record of the Rhynie cherts, what structures were present in the earliest vascular plants? Select all correct choices

A. stomata B. cuticles C. extensive root systems D. multi-veined leaves E. sporangia

Biology & Microbiology

Which of the following would NOT be part of the germ tube?

A. tube cell nucleus B. two sperm cells C. pollen sporopollenin wall D. pectin precursors E. cell membrane

Biology & Microbiology

In this microscope, the observer does NOT look at an image through a lens.

a. Compound light microscope b. Phase-contrast microscope c. Darkfield microscope d. Fluorescence microscope e. Electron microscope

Biology & Microbiology

Trypsin and elastase are both enzymes that catalyze hydrolysis of peptide bonds. But trypsin only cuts next to lysine and elastase only cuts next to alanine. Why?

What will be an ideal response?

Biology & Microbiology