A doctor is treating a patient who has some form of anemia. First, the doctor tries to give the patient extra vitamins that contain iron, to no effect. There is no evidence of lead poisoning. The doctor tries an injection of vitamin B12, and the anemia
is under control. What type of anemia did the patient have?
A) hemorrhagic anemia B) iron-deficiency anemia
C) pernicious anemia D) sickle-cell anemia
Answer: C
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Steroid hormones ____
a. are proteins b. include testosterone, estrogens, and cortisol c. never activate second messengers d. never alter membrane transport of ions e. are large nonpolar molecules
Factors that influence population growth but do not change systematically with the density of the population are called density-________ factors
Fill in the blank(s) with correct word
If recombination results in random integration of a DNA sequence so that it produces a non-homologous region, the recombination is ________
Fill in the blank(s) with correct word
The Citric acid cycle occurs in the mitochondria. There are nine biochemical reactions involved in the Citric acid cycle, and they are highly ordered. Select the correct order. (Note: These are abbreviated and do not show NAD, ADP, ATP, or FAD.)
A. acetyl-CoA joins the Citric acid cycle and unites with oxaloacetate ?forming citrate ?which forms alpha-ketoglutarate ? which forms succinyl-CoA ? which forms succinate ? which forms fumarate ? which forms malate ? which forms oxaloacetate B. acetyl-CoA joins the Citric acid cycle and unites with oxaloacetate ?forming citrate ?which forms alpha-ketoglutarate ? which forms succinyl-CoA ? which forms succinate ? which forms malate ? which forms fumarate ? which forms oxaloacetate C. acetyl-CoA joins the Citric acid cycle and unites with oxaloacetate ?which forms alpha-ketoglutarate ? forming citrate ? which forms succinyl-CoA ? which forms succinate ? which forms fumarate ? which forms malate ? which forms oxaloacetate D. acetyl-CoA joins the Citric acid cycle and unites with oxaloacetate ?forming citrate ?which forms beta-ketoglutarate ? which forms succinyl-CoA ? which forms succinate ? which forms fumarate ? which forms malate ? which forms oxaloacetate