The portion of the DNA molecule that is ultimately translated is composed of
a. introns.
b. anticodons.
c. exons.
d. transcriptions.
e. regulatory proteins.
C
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Despite oomycetes being called "water molds," they are phylogenetically distant from most other fungi
Indicate whether the statement is true or false.
In muscle contraction, the breaking of the cross-bridge between actin and myosin is caused by ____
a. hydrolysis of ATP into ADP plus Pi b. formation of ATP from ADP and Pi c. release of Pi from the myosin head d. binding of a new ATP to the myosin head e. return of myosin to a high-energy state
Fragile X syndrome and Huntington disorder are examples of what type of mutation?
a. frameshift b. base-substitution c. expansion d. transposable element e. point
The anterior interventricular artery supplies a portion of the heart wall with oxygenated blood. Suppose that blood is flowing through a healthy region of this artery but then flows through a region that is atherosclerotic. What will happen to blood flow
when it reaches the atherosclerotic region? A) Blood velocity will increase. B) Blood velocity will decrease. C) The amount of oxygen in the blood will increase. D) The amount of oxygen in the blood will decrease.