The middle gene of a three gene mapping experiment can be determined by examining the genotypes of which of the following?
A. Offspring that resemble the parents
B. Offspring that exhibit a single crossover event
C. Offspring that exhibit double crossover events
D. None of the answers are correct
C
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The transformation frequency of very competent cells is about 10-6, or about 1 in 1,000,000 when an excess of DNA is used.
Answer the following statement true (T) or false (F)
Synthetic anabolic steroids:
A. All of the answer options are correct. B. promote protein synthesis. C. promote anabolic metabolism to store energy within cells. D. build and strengthen muscle tissue. E. interfere with the normal production of anterior pituitary tropic hormones.
All steroids have
a. the same number of double bounds. b. double bonds in the same positions. c. four carbon rings. d. the same functional groups. e. the same number and positions of double bonds.
Concerning the role of the pancreas in digestion,
a. no digestion occurs in the pancreas. b. endocrine cells secrete bicarbonate, which helps neutralize highly acidic chyme. c. endocrine cells release enzymes that break down carbohydrates, fats, proteins, and nucleic acids in the small intestine. d. exocrine tissue produces insulin and glucagon, which help regulate the metabolism of sugar. e. all of these are true.