Which test provides the earliest indication of genetic problems in a fetus?
A. Amniocentesis
B. Chorionic villus sampling
C. Both provide reliable indications at the same stage of development
B
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Which of the following is TRUE of fertilization?
A. It restores the egg to a diploid state. B. It activates cell division. C. It is critical to maintaining membrane polarity. D. It both restores the egg to a diploid state and activates cell division. E. It both restores the egg to a diploid state and maintains membrane polarity.
Ovulation is indicated by
a. A. b. B. c. C. d. D. e. E.
The bands on chromosomes correspond to
A. gene-poor regions. B. gene-rich regions C. regions where specific proteins attach to the chromosomes. D. regions actively transcribing RNA. E. regions where genes are not transcribing RNA.
The structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the
A. hepatic portal vein. B. hepatic portal artery. C. renal vein. D. None of the choices are correct.