A 39-year-old woman is in her sixth week of pregnancy. Due to her advanced age, she is at higher risk for having a baby with Down's syndrome than younger pregnant women. She would like to find out as early as possible whether or not her baby has Down's syndrome. Her doctor should suggest
A. chorionic villi sampling.
B. amniocentesis.
C. a pedigree analysis.
D. genetic counseling.
Answer: A
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a. transports chloride ions across membranes b. delivers chloride ions to the endoplasmic reticulum c. binds chloride ions to DNA prior to gene expression d. binds chloride ions to bacteria so they are more easily recognized by white blood cells e. the normal protein does more than one of these things
Why do physicians often examine the lymph nodes of cancer patients?
What will be an ideal response?
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Answer the following statement true (T) or false (F)
One-fourth of all human breast cancers have been found to have an increased amount of the oncogene
a. P21. b. HER2. c. Cdk. d. Cyclin. e. RB.