Which of the following statements regarding lethal genes is TRUE?
a. On average, people carry 6-8 lethal genes.
b. Lethal genes are usually dominant genes.
c. Only a very few lethal genetic disorders are caused by recessive lethal genes.
d. Dominant lethal genes most often express themselves in spontaneous abortions and
stillborn babies.
e. Recessive lethal genes are only expressed when paired with a dominant lethal gene.
d. Dominant lethal genes most often express themselves in spontaneous abortions and
stillborn babies.
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The place theory is not able to completely explain pitch perception because people can sense pitches as low as _________ yet the Place Theory appears to apply only to pitches greater than _________
a. 00 Hz; 5,000 Hz c. 20 Hz; 5,000 Hz b. 20 Hz; 500 Hz d. 2 Hz; 500 Hz
When others act, our attention is focused on __________. When we act, our attention is focused on ___________
a. the environment; ourselves b. them; the environment c. their facial expressions; our feelings d. their body language; our appearance
What is the best explanation for the dog's superior sense of smell compared to ours?
a) They have long snouts. b) They are closer to the ground. c) Their olfactory epithelium is much larger. d) Their olfactory neurons project into their brain and ours don't.
Every child has a genetically based ____ for intelligence, meaning a range of possible developmental paths
a. reaction range b. heritability ratio c. standard deviation d. variance from the mean