Which of the following is an effective means of conceiving a child of a specific sex?
A) Timing intercourse to take place closer to ovulation for a boy and after ovulation for a girl.
B) Using an alkaline douche to conceive a boy and an acidic douche to conceive a girl.
C) Preimplantation genetic diagnosis.
D) Altering hormone ratios prior to attempts at conception.
Question 2
Which of the following is true with regard to laboratory techniques that separate X- from Y-bearing sperm?
A) This procedure is widely opposed by the public, even when used by couples at risk for passing on X-linked diseases.
B) This involves inserting the embryo of the desired sex into the woman's uterus.
C) This is of benefit to couples at risk of passing on a X-linked disease.
D) Success rates are nearly 100 for both male and female babies.
The moray eel meets its energy and nutrient needs by being an effective predator.
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