A mutation results in an enzyme that is partially active compared to the wild-type allele. This type of "leaky" mutation is classified as __________
A) amorphic
B) hypomorphic
C) hypermorphic
D) neomorphic
E) dominant negative
B
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Water potential (?) can be thought of as the tendency for water to move from one place to another. In plants, it is made up mainly of solute potential and pressure potential
Hypothetical plant cells A and B are adjacent to each other. The solute potential (?S) of cell A is -0.35 MPa, and its pressure potential (?P) is +0.15 MPa. The solute potential (?S) of cell B is -0.30 MPa, and its pressure potential (?P) is +0.05 MPa. In which direction will net water movement occur? A) Neither; cells A and B are in equilibrium with each other. B) from cell A to cell B C) from cell B to cell A
Which of the following macromolecules are polymers?
A. lipids B. carboyhydrates C. nucleic acids D. proteins E. All of the choices are correct.
This animal has two atria and one ventricle and two vascular circuits. This animal is a(n) ____
a. salmon b. woodpecker c. alligator d. rat e. frog
A distinctive feature of eukaryotes is the organization of tightly packaged chromosomal DNA with proteins into a membrane-bound structure called a
A. nucleolus. B. nucleus. C. cell. D. plasma membrane.