What is the risk for a man who has Down syndrome to produce a child with Down syndrome with a woman who has a normal karyotype?
A. 100%
B. 50%
C. 25%
D. 0%
Ans: D. 0%
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The P-site
A. is found on the polymerase enzyme. B. is an allosteric site. C. is a promoter site. D. is the peptidyl site on the ribosome. E. is an allosteric site AND is a promoter site.
Salamanders are members of the order:a
Apoda. b. Urodela. c. Anuran. d. Tetrapoda. e. Squamata.
Raising young rats alone, rather than in the company of other rats, may cause:
A) unusual aggression B) changes in many brain regions C) depression D) a decrease in the size of an odor processing structure
The use of a positive selection marker in the development of Golden Rice 2 allowed the transgenic plants to grow on ________, which is usually unusable by plants
A) fructose 6-phosphate B) xylose 6-phosphate C) mannose 6-phosphate D) glucose 6-phosphate