Brain lateralization has been used to explain the observed sex differences in visual-spatial skills. Which of the following is not a premise of the brain lateralization hypothesis?
a. Rapid maturation of the brain produces less eventual lateralization of the brain.
b. Verbal skills develop sooner than visual-spatial skills.
c. Verbal processing in both hemispheres rather than in just one hemisphere improves visual-spatial processing.
d. Girls' brains mature more quickly than boys' brains.
C
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____ modify the ____ sensitivity to different wavelengths of light
a. Retinol; photopigments b. Opsins; retinol c. Photopigments; opsins d. Opsins; photopigments
Which statement is false regarding the secondary sex characteristics experienced by boys and girls in puberty?
A. Only girls experience breast enlargement during puberty. B. Testosterone causes both boys' and girls' voices to deepen during puberty. C. Secondary sex characteristics are not directly related to fertility. D. Breast development is the first clear sign of puberty in girls.
Identify four methods of prenatal diagnosis. Which two pose some risk to the developing fetus, especially if performed early in the pregnancy?
What will be an ideal response?
A human trait is influenced by a single pair of genes with "G" representing the dominant gene and "g" representing the recessive gene. Sally (genotype Gg) and Harry (genotype Gg) decide to have children. According to the principles of Mendelian heredity, what percentage of their children would exhibit the trait?
a. 25 b. 50 c. 75 d. 100