Most peptic ulcers are caused by ____
a. antibiotics
b. bacteria
c. heartburn
d. lactose intolerance
e. malnutrition
ANSWER: b
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Consider the map shown below of a portion of a prokaryotic genome. How might the elements indicated affect the stability and structure of the genome? Assume that IS2 encodes for a transposase that catalyzes conservative transposition
Re-draw the genome map to illustrate your prediction if necessary. | IS2 |__gene1 gene2 gene3 | IS2 | geneA geneB geneC | IS2 | geneD | IS2 | geneX What will be an ideal response?
If you could travel in a time machine back to the Cambrian Explosion, which animals would you expect to see commonly? Check all that apply.
_____ sponges. _____ birds. _____ reptiles. _____ arthropods. _____ flatworms.
What is the effect of cofilin on an actin microfilament?
A) caps the microfilament plus end B) caps the microfilament minus end C) increases turnover of ATP-actin at the microfilament plus end D) increases turnover of ADP-actin at the microfilament plus end E) increases turnover of ADP-actin at the microfilament minus end
A fruit develops from the ovary wall
____________________ Indicate whether the statement is true or false.