Compare and contrast chromosomal disorders and genetic disorders. Be sure to explain the difference between the two and describe an example for each. Finally, what advice would you offer to parents who believe they are at high risk of having a child with a chromosomal or genetic disorder?
What will be an ideal response?
Chromosomal disorders occur because chromosomes fail to divide properly. Genetic disorders, on the other hand, are caused by incomplete inheritance or mutations. Examples of chromosomal disorders include sex chromosome disorders and Down syndrome. Example of genetic disorders include sickle-cell anemia and hemophilia. Students' advice will vary. They might recommend genetic counseling, prenatal screening/diagnosis, or acting in supportive and encouraging ways toward the child once he or she is born to increase the likelihood of favorable development.
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If an infant watches while a toy that has been hidden in one location is then hidden in a new location, most 8- to 10-month-olds
a. cannot find the toy. b. cannot decide whether to look for the toy in the old or the new location. c. look for the toy in the old location, indicating that they do not understand that objects exist independently. d. look for the toy in the new location, indicating that they understand that objects exist independently.
Which of the following statements is true regarding the trend towards overweight infants?
Infants from higher SES backgrounds are more likely to be overweight. Babies are eating too much junk food and not enough fruits and vegetables. The rate of overweight younger infants (under 6 months of age) exceeds the number of overweight older infants. Concern for infant weight is not a factor until the baby reaches one year of age.
Ideally, the variance that an independent variable produces should be
a. random. b. systematic. c. unexplained. d. nonexistent.
In many immigrant families from cultures that value interdependent qualities, adolescent __________ the longer their family has been in the United States.
A. interest in learning about their heritage increases B. commitment to fulfilling family obligations increases C. ability to fit in with mainstream U.S. culture decreases D. commitment to obeying their parents decreases