A(n) ________ directs the making of a protein
Fill in the blank(s) with correct word
gene
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A ____ mutation in snails can reverse the direction of shell coiling, which ____ mating
a. single; encourages b. single; prohibits c. double; encourages d. double; prohibits e. large deletion; encourages
Radiolarians have characteristic ____, which are thin, ray-like strands of cytoplasm supported internally by bundles of
____.
a. axopods; microfilaments b. axopods; microtubules c. spicules; microfilaments d. spicules; microtubules
e. microfilaments; axopodsType 2 diabetes is caused by:
a. too much insulin in the blood. b. too little insulin in the blood. c. too much glucagon in the blood. d. too little glucagon in the blood. e. receptors being insensitive to insulin.
Repressor proteins do not __________________.
A. prevent binding of RNA polymerase to DNA B. cause the DNA regions that contain the operator to twist or loop C. inactivate operon genes when their products are not required D. bind to sets of operators E. increase transcription rates