Which of the following is true about Euglena?
A. They belong to the same phylum as Paramecium.
B. They do not have flagella.
C. They have a pellicle.
D. They lack chloroplasts.
E. They have sexual reproduction.
C. They have a pellicle.
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Which enzyme is a topoisomerase?
A. DNA polymerase I B. DNA polymerase III C. DNA gyrase D. DNA ligase
The use of selected culture media and incubation conditions to isolate microorganisms from samples is known as a(n)
A) differential culture. B) selective culture. C) enrichment culture. D) sensitive culture.
Organisms that produce all of their offspring in a single event are
A. always successful. B. never successful. C. autogenous. D. semelparous. E. iteroparous.
Homologous chromosomes are held together in the
A) synaptonemal complex. B) centromere. C) kinetochore. D) nucleus. E) MTOC