The presence of 2 disulfide bonds near each other is a good thing when a stretch of protein is to be immobilized.

a. true
b. false


Answer: a. true

Biology & Microbiology

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During a microarray analysis, cDNAs made from normal cells are stained with a green fluor and cDNAs from

abnormal cells are stained with a red fluor. Which of the following statements is true about the results of this experiment?

a. Red spots indicate genes that are under expressed in abnormal cells. b. Red spots indicate genes that are not expressed in abnormal cells. c. Red spots indicate genes that are overexpressed in abnormal cells. d. Red spots indicate genes that are overexpressed in normal cells. e. Red spots indicate pseudogenes.

Biology & Microbiology

The first cell of a new individual that is the

result of sexual reproduction is a

a. zygote. b. embryo. c. gamete. d. germ cell. e. sporophyte

Biology & Microbiology

Which of the following is most likely the cause of the current extinction crisis?

a. asteroid impact b. human activity c. adaptive radiation d. tectonic activity e. rising sea levels

Biology & Microbiology

Antibiotic therapy very early in life can

a. cause a predisposition for IBD. b. cause a predisposition for allergies. c. cause increased weight gain. d. all of the above

Biology & Microbiology