The wild-type pUC19 plasmid (blue plasmid) contains genes for
(a) antibiotic resistance.
(b) activation of ?-galactosidase production.
(c) both a and b.
(d) none of these choices.
(c) both a and b.
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The maximum number of individuals of a given population the environment can support is the environment's ____ for that population
Fill in the blank with the appropriate word.
Decontamination strategies used for potable water and the control of E. meningoseptica are similar to those utilized for which organism?
a. Streptococcus pneumoniae b. Staphylococcus aureus c. Listeria monocytogenes d. Legionella spp.
Which of the following statements regarding vaccines as disease preventatives is incorrect?
A. There is currently no smallpox vaccine available to the general public. B. Immunization is currently not possible against Clostridium perfringens. C. Zostavax is recommended for older adults to prevent shingles. D. The Carter Center has promoted the development of a vaccine against river blindness.
Occasionally, chromosomes fail to separate during meiosis, leading to daughter cells that have an abnormal number of chromosomes. This phenomenon is called
A. nondisjunction. B. epistasis. C. pleiotropy. D. chromosome inactivation. E. crossing over.