The bacterium that in part causes acne is
a. Propionibacterium
b. Porphyromonas
c. Streptococcus
d. Lactobacillus
e. Clostridium
A
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The human brain is fully functional by the end of the ____
a. first trimester b. third month c. third trimester d. ninth month e. seventh month
You suspect a cell that is capable of forming gametes might be carrying a gene that makes it defective in homologous recombination. Design an experiment to assess its homologous recombination capability
What will be an ideal response?
You observe a microbiologist examining two plates and notice the pattern of colonies are nearly identical with the exception of a few colonies that are absent on one of them. The plates likely were produced by
A) positive selection culturing. B) replica plating. C) pour plating. D) streak plating. E) the Ames test.
Which of the following is incorrect about dicots?
A. They have leaves with netlike (reticulate) veins. B. They typically have flower parts in fours and fives. C. Oak trees are an example. D. They are likely the first angiosperms. E. Grasses are an example.