A microbiologist plated a bacterium on a specific medium. After incubation, she noted that the previously yellow medium was now hot pink and there were numerous bacterial colonies growing on the medium. What type of medium did the microbiologist use in this example?
A) selective
B) general purpose
C) nonsynthetic
D) differential
Ans: D) differential
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A. true B. false
The genes in an operon are ____
a. each transcribed into individual mRNAs b. transcribed into a single mRNA transcript c. controlled by separate promoters d. transcribed as a single mRNA in prokaryotes, but as individual mRNAs in eukaryotes e. located at different chromosomal loci
If an oocyte is traveling through the oviduct, what stage must it be in?
a. meiosis I b. meiosis II c. primary oocyte d. follicular phase e. polar body
The (fungi/algae/lichens) are so sensitive to pollutants that they are used as indicators of environmental conditions
What will be an ideal response?