If an X-linked recessive gene is expressed in 4 percent of the men, what proportion of women would
express the recessive trait? What will be an ideal response?
ANS: 4/100 ? 4/100 = 16/10,000, or 4 out of 2,500
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All cells have:
A. a nucleus. B. genetic information. C. internal compartments. D. a cell wall.
You inherited from your mom both her crooked nose and her recipe for chocolate chip cookies (both favorable traits). Which trait will be spread more quickly through the
A. the nose because it is a genetically based trait B. the recipe because it is a genetically based trait C. the nose because it can be passed on to all relatives D. the recipe because it can be passed on to all relatives E. They are both advantageous traits and spread at the same rate. F. It depends on if you are male or female.
Taq polymerase is
A. a reverse transcriptase. B. an RNA polymerase. C. from E. coli. D. a heat-stable DNA polymerase from Thermus aquaticus. E. an RNA polymerase AND from E. coli.
To make the skin more flexible and remove wrinkles, ________ could be injected beneath a person's skin.
A. cellulose B. laminin C. proteoglycan D. fibronectin E. collagen