Down syndrome involves trisomy of chromosome number
a. 3.
b. 5.
c. 15.
d. 19.
e. 21.
E
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Which of the following does NOT occur during yeast fermentation?
A. Acetylaldehyde is reduced to make ethanol. B. Decrease in NADH. C. Lactate is produced. D. Pyruvate is broken down into CO2 and acetylaldehyde. E. NADH is oxidized to NAD+
A particular characteristic of disease-causing Streptococcus is
A. catalase production. B. beta-hemolysis. C. lactic acid production. D. growth at refrigerator temperatures.
Currently in the United States, approximately ________ couples have difficulty in conceiving or giving birth to children.
A) 1 in 6 B) 1 in 30 C) 1 in 100 D) 1 in 200
Based on four generations of data, does the inheritance of this disease appear to be related to the sex of the offspring?
a. yes b. no