Which of the following is a shared characteristic of prokaryotic and eukaryotic organisms?
a. capsule
b. ribosomes
c. pili
d. nucleoid
b. ribosomes
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Due to the slow and varied growth rates, mycobacteria are commonly grouped into either slow growing or very slow growing, which has consequences on the growth medium selected for culturing
Indicate whether the statement is true or false.
The rates of evolutionary change in DNA:
A. are highly variable among different gene families. B. are constant in gene families with a diversity of members. C. can only be determined in conserved genes. D. are constant among different gene families and thus are used to estimate the time of divergence. E. are zero.
Transgenic plants produced by biotechnology contain fewer introduced genes than altered plants
obtained by traditional breeding methods. Indicate whether the statement is true or false.
Dikaryotic cells are denoted as:
a. n + n. b. n ? n. c. n. d. 2n. e. 2n ? n.