How did Briggs and King move the nuclei between cells?
A. With a dissecting needle
B. With a glass pipet
C. With a scalpel
D. With forceps
Answer: B
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Why do different mutations accumulate in two species once they diverge?
A. They can no longer mate and swap the mutation. B. The molecular clock runs at different speeds in different species. C. The mutations make the species different. D. convergent evolution E. Natural selection favors mutations in one species over another.
The coelacanth is an example of a species that
is in
a. isolation. b. stasis. c. change. d. turmoil. e. sympatry
________ solution was introduced in the late 19th century for preventing gonococcal infections in a newborn's eyes after exposure to the mother's infected birth canal.
A. Merthiolate B. Triclosan C. Silver nitrate D. Zinc oxide E. Betadine
Which of the following methods is used to preserve food by slowing the metabolic processes of foodborne microbes?
A) lyophilization B) nonionizing radiation C) freezing D) ionizing radiation E) pasteurization