Infertility is generally defined as the lack of conception after _____ of unprotected intercourse.
A. 3 months
B. 6 months
C. 9 months
D. 1 year
E. 1.5 year
Answer: D
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Having high blood levels of ________ may increase a person's risk of CVD.
A. tryptophan B. homocysteine C. aspartic acid D. HDL
Which individual is at the highest risk for stroke?
A) a 65-year-old Caucasian with family history of heart disease B) a 65-year-old obese African American with a history of hypertension C) a 55-year-old African American with family history of hypertension D) a 45-year-old Caucasian with family history of diabetes
Mrs. Smith is a 59-year-old African-American female who is 5' 2" tall and weighs 180 pounds. She is a smoker who engages in no physical activity, and her diet history shows a high intake of saturated fat and sodium as well as excess kcalories. Her lipid profile shows elevated LDL and decreased levels of HDL. In order to raise her HDL levels, the nurse recommends that Mrs. Smith:
a. quit smoking. b. eat less saturated fat. c. consume less sodium. d. take fish oils.
Which of the following statements is true of the work of James Watson and Francis Crick?
A. They were the pioneers of the Human Genome Project. B. They described the double-helical structure of DNA. C. They discovered the laws of genetics in the year 1865. D. They discovered that DNA is the genetic material in living beings. E. They proposed the concept of the genetic code.