Vertical gene transfer between one bacterium and another may occur by a process of
A. transformation
B. mutation
C. transfixation
D. transduction
E. conjugation
Answer: B. mutation
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Phycobiliproteins are
A. found in purple sulfur bacteria. B. found in cyanobacteria. C. used to gather wavelengths of light that are not well absorbed by chlorophyll. D. are used to reduce hydrogen sulfide. E. found in cyanobacteria AND used to gather wavelengths of light that are not well absorbed by chlorophyll.
The tunic of tunicates is composed of:
a. a cellulose-like substance. b. chitin. c. silica. d. calcium carbonate. e. starch.
The species area effect applies to all of the following EXCEPT _____
a. islands b. lakes c. mountaintops d. nature preserves e. habitats isolated from each other
30. In meiosis, homologous chromosomes separate during
A. prophase II. B. anaphase I. C. prophase I. D. anaphase II. E. metaphase I.