How is chorionic villus sampling (CVS) carried out?
What will be an ideal response?
Answers will vary. Chorionic villus sampling (CVS) is similar to amniocentesis but is carried out between the 9th and 12th week of pregnancy. A small syringe is inserted through the vagina into the uterus and sucks out some threadlike projections (villi) from the outer membrane that envelops the amniotic sac and fetus. Results are available within days. CVS has not been used as frequently as amniocentesis because CVS carries a slightly greater risk of miscarriage.
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Based on the notion that there seems to be a genetic component involved in homosexuality, and that homosexual participants in one study had more homosexual male relatives on their mother's side of the family,
researchers suspect that sexual orientation is determined by __________ a) genes on the X chromosome contributed by the mother. b) genes on the Y chromosome contributed by the mother. c) genes on the X chromosome contributed by the father. d) genes on the Y chromosome contributed by the father.
Henry feels helpless at his job, feels that he cannot control his workday, and feels that he is useless, worthless, and inept. These characteristics would probably mean that Henry has ________
A) low self-esteem B) high locus of control C) high self-insight D) low locus of control E) negative possible selves