In its active form, the Ras protein is associated with

A) DNA.
B) ATP.
C) GTP.
D) RNA.
E) GDP.


C) GTP.

Biology & Microbiology

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Dynein is a motor protein found attached to:

A. lamin. B. microfilaments. C. microtubules. D. intermediate filaments.

Biology & Microbiology

A chronic, local allergy such as hay fever is considered ________.

A. systemic anaphylactic B. atopic C. delayed D. T-cell-mediated E. antibody-mediated

Biology & Microbiology

Building blocks of carbohydrates are amino acids.

a. true b. false

Biology & Microbiology

Which of the following is NOT a feature associated with filtration?

A. nitrocellulose or plastic membrane filters B. sterilization of heat-sensitive materials C. varying thicknesses of membrane filters used D. use of HEPA filters to filter air E. ability of some filters to trap viruses and proteins

Biology & Microbiology