The enzyme catalase acts on the substrate
A) hydrogen. B) oxygen.
C) peroxidase. D) hydrogen peroxide.
D
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Which of the following is a safe non-invasive imaging technique that uses the reflection of high frequency sound waves off of body tissues to visualize a fetus during pregnancy?
a) computed tomography b) magnetic resonance imaging c) ultrasound scanning d) radionuclide scanning e) amniocentesis
The anaerobic reactions of cellular respiration occur in the _____, whereas the aerobic
reactions of cellular respiration occur in the ______. A) mitochondria without O2 required; mitochondria with O2 required B) mitochondria with O2 required; cytoplasm with O2 required C) cytoplasm without O2 required; mitochondria with O2 required D) cytoplasm without O2 required; cytoplasm with CO2 required
If the parental genotypes for sickle cell anemia/trait are Ss and ss, what is the probability of offspring having the sickle cell trait? If there is some probability of offspring having sickle cell anemia, what is that probability?
A) trait 50%; anemia 50% B) trait 25%; anemia 75% C) trait 75%; anemia 25%
true or false: genes produce their products nonstop, 24hours/day.
What will be an ideal response?