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
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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.
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
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
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