Which of the following is a shared characteristic of prokaryotic and eukaryotic organisms?

a. capsule
b. ribosomes
c. pili
d. nucleoid


b. ribosomes

Biology & Microbiology

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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.

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology

Dikaryotic cells are denoted as:

a. n + n. b. n ? n. c. n. d. 2n. e. 2n ? n.

Biology & Microbiology