Cells that are more active in secreting enzymes would most likely exhibit which one of the following?
a. exocytosis
b. endocytosis
c. diffusion
d. osmosis
Ans: a. exocytosis
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The most posterior of the lobes of the human cerebrum is the __________.
Fill in the blank(s) with the appropriate word(s)
Mitochondrial gene defects most often affect the ____________________ and the ____________________. Fill in the blank(s) with the appropriate word(s)
Organisms such as oysters or fish that produce millions of eggs per year may be characterized as:
a. r-selected and having a type I survivorship curve. b. K-selected and having a type I survivorship curve. c. r-selected and having a type II survivorship curve. d. K-selected and having a type II survivorship curve. e. r-selected and having a type III survivorship curve.
In a healthy cell, the rate of DNA repair is equal to the rate of DNA mutation. When the rate of repair lags behind the rate of mutation, what is a possible fate of the cell?
A) The cell can be transformed to a cancerous cell. B) RNA may be used instead of DNA as inheritance material. C) The cell will become embryonic. D) DNA synthesis will continue by a new mechanism.