What level of protein structure determines the protein’s final three-dimensional configuration?

a. secondary
b. tertiary
c. primary
d. quaternary


b. tertiary

Biology & Microbiology

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A cross bridge is the binding of which two proteins?  

A.  actin and myosin B.  actin and troponin C.  myosin and troponin D.  collagen and troponin E.  myosin and collagen

Biology & Microbiology

In fruit flies, natural selection tends to maintain both alleles of the foraging gene because:

a. gametes assort randomly b. larvae of each foraging type are more likely to survive when their type is rare c. larvae of each foraging type are more likely to survive when their type is common d. rovers often find more food than sitters e. sitters conserve more energy than rovers

Biology & Microbiology

The first animals to adapt to life on land were probably the 

A. amphibians. B. millipedes. C. reptiles. D. mammals.

Biology & Microbiology

Viral capsids are made from subunits called

A. spikes. B. capsomers. C. prophages. D. envelopes. E. peplomers.

Biology & Microbiology