Your mother has albinism, which is a recessive trait. Your father has cystic fibrosis, which is also a recessive trait
You discover that your new father-in-law has albinism and cystic fibrosis. If neither you nor your spouse has either
albinism or cystic fibrosis, what are the odds that your first child will have either albinism or cystic fibrosis, but not both?
a. 1/16
b. 3/8
c. 1/8
d. 1/4
e. 0
ANSWER: b
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Using bright-field microscopy to look at a slide prepared with a basic dye you observe cells under 400X magnification with a clear inner compartment within the cell. The cell is most likely a(n)
A) prokaryote. B) bacterium. C) archaeon. D) eukaryote.
Which of the following is not true of the regulation of the arabinose operon?
A. CRP activates expression when bound to cAMP. B. AraC protein recruits RNA polymerase when bound to arabinose. C. Arabinose binds to AraC protein, decreasing its affinity for a DNA site near the promoter. D. Arabinose binding alters the conformation of the dimerization domain of the AraC protein.
A term synonymous with antibody is
A. antigen. B. epitope. C. determinant. D. immunoglobulin
Which of the following is caused by Chlamydia?
A) Gardnerella vaginosis B) genital herpes C) candidiasis D) trichomoniasis E) lymphogranuloma venereum