Which of the following traits is unique to deuterostome animals?
A. A coelom
B. Bilateral symmetry
C. Mouth formation on the end of embryos opposite the blastopore
D. A nervous system
Answer: C. Mouth formation on the end of embryos opposite the blastopore
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A researcher synthesizes a new drug that specifically targets and degrades peptidoglycan. What type of infections could this drug treat? (Select all correct choices.)
A. infections caused by archaea B. infections caused by bacteria C. infections caused by viruses D. infections caused by eukaryotes
Plants are considered to be ____
a. heterotrophs b. chemotrophs c. carbotrophs d. autotrophs e. thermotrophs
You have identified a novel cytoplasmic protein. Through sequence analysis you are able to identify the presence of a number of serine/threonine phosphorylation motifs. Based on these data, you hypothesize that this protein may be a substrate for what kind of enzyme?
A. A phospholipase B. A receptor tyrosine kinase C. A G protein-coupled receptor D. A protein kinase E. A tyrosine phosphatase
Species of the genus Gardnerella ________.
A. are motile spore-forming cocci B. are thought to be a major cause of bacterial vaginitis C. are normal flora found on the skin of humans D. All of the choices are correct.