Name and briefly describe some common disorders associated with recessive alleles
What will be an ideal response?
A good answer will include the following key points:
+ Albinism: skin lacks melanin, which causes visual problems and extreme sensitivity to light.
+ Cystic fibrosis: excess mucus clogs digestive and respiratory tracts.
+ Phenylketonuria (PKU): Phenylalanine, an amino acid, accumulates in the body and damages the nervous system, causing mental retardation.
+ Tay-Sachs disease: The nervous system degenerates in infancy, causing deafness, blindness, mental retardation, and, during the preschool years, death.
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At what point do children determine that just because they see someone else's point of view doesn't mean they will come to an agreement?
A. Level 1 B. Level 2 C. Level 3 D. Level 4
According to ethologist John Bowlby, the crying of infants is adaptive because crying
a. creates frustration in caregivers. b. helps infants develop better coping skills. c. aids in lung development. d. ensures that basic needs are met and promotes the development of emotional attachments.
A reflexive response elicited by a stimulus in the absence of learning is called a conditioned response
Indicate whether this statement is true or false.
When Ari was 4 months old, it took the researcher approximately 10 seconds to get him to habituate to a ringing noise filling the testing room. When he is 8 months old, how long would you expect it to take?
a. 1 minute b. 30 seconds c. 15 seconds d. a few seconds, at most