When allele frequency changes, a population is
said to no longer be in
a. genetic equilibrium.
b. isolation.
c. upheaval.
d. fluctuation.
e. transition
A
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Indicate whether the statement is true or false.
The ?1 protein produced by the yeast MAT?? allele functions:
A. alone to repress ?-specific genes in haploid ? cells. B. with Mcm1 protein to repress ?-specific genes in haploid ? cells. C. with ?2 protein to repress haploid-specific genes in diploid cells. D. with a1 protein to repress ?-specific genes in diploid cells.
The ozone hole over Antarctica and the general lowering of ozone levels elsewhere in the stratosphere have been attributed to the ozone-destroying properties of
A) endocrine-disrupting chemicals. B) nitrogen oxides. C) sulfur dioxide. D) chlorofluorocarbons (CFCs). E) carbon dioxide and methane.
Chlamydiae can be transmitted by ALL of the following ways EXCEPT
a. airborne invasion of the respiratory system. b. transmission of the elementary bodies. c. arthropod vectors. d. sexual contact.