Preimplantation genetic diagnosis works because
A) the donor and recipient are siblings and therefore they share most of their genetic
material.
B) the missing genes are injected into cell nuclei of the recipient.
C) each cell in a human at any stage can give rise to a separate individual.
D) a cell can be removed from an 8-celled human embryo and the remaining 7 cells can
continue developing.
D
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Cardiac muscle
A. is multinucleated. B. excites itself. C. partially lines the intestines. D. contains only a few mitochondria.
To calculate GFR, the concentration of a marker molecule is measured in both the blood and the urine, and the total volume of urine produced is also measured. Which of the following sets of results indicates the highest GFR?
A. High concentration of the marker in the blood, high volume of urine, low concentration of the marker in the urine B. High concentration of the marker in the urine, high volume of urine, low concentration of the marker in the blood C. High concentration of the marker in the urine, low volume of urine, high concentration of the marker in the blood D. High concentration of the marker in the blood, low volume of urine, high concentration of the marker in the blood
The pH of __________ blood is normally 7.45 and the pH of __________ blood is 7.35, for an average blood pH of 7.4
Fill in the blank(s) with correct word
The pulmonary trunk receives blood from the right ventricle and conducts it toward the lung. The pulmonary trunk is a(n)
A. capillary. B. artery. C. vein.