Genes for drug resistance may be present
A. on plasmids.
B. on the chromosome.
C. on mitochondrial DNA.
D. both on the chromosome and on plasmids.
E. both on plasmids and on mitochondrial DNA.
F. both on the chromosome and on mitochindrial DNA.
Answer: D
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A gene pool is
A. the genes that are unique to a species. B. all the genes in a population. C. all the similar genes in a gene family. D. a swimming hole for geneticists. E. a group of species that look alike but are not located in the same area at the same time.
The opening of which of the following is covered
with ciliated, fingerlike projections that produce a sweeping action? a. ovary b. uterus c. vagina d. oviduct e. follicle
Which of the following refers to the process by which viruses are expelled out of their host cell?
a. Maturation b. Viral shedding c. Attachment d. The lytic cycle e. Lysogeny
A pesticide was found to cause cancer in laboratory mice. Which of the following would be the most reasonable hypothesis to pursue?
a. The pesticide mutates one oncogene to a proto-oncogene and one tumor suppressor gene to an inactive form. b. The pesticide mutates an oncogene to a proto-oncogene. c. The pesticide mutates both tumor suppressor genes to inactive forms. d. The pesticide mutates both oncogenes to proto-oncogenes.