The chief chromosomal feature of fragile-X syndrome is that:
a single gene has more than 200 repetitions of one triplet.
the X chromosome carries dangerous recessive genes.
the X chromosome carries dangerous dominant genes.
the X chromosome is missing.
a single gene has more than 200 repetitions of one triplet.
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Adam and Drake have a warm and trusting relationship. They share attitudes and values. They exchange trusting affection and caregiving. According to Sternberg, Adam and Drake display __________ love
A) passionate B) committed C) intimate D) companionate
The National Survey of Sexual Health and Behavior (2010 ) noted all of the following, EXCEPT
A) American adults engage in a wide variety of sexual behaviors. B) more Americans have engaged in same gender sex than identify with being gay or lesbian. C) the percentage of American adolescents who engage in vaginal intercourse is far more than those who engage in oral sex. D) sexual behavior in older Americans is not at all unusual.