Single gene pairs play a crucial role in development. However, it is more common that developmental outcomes occur because of the interaction of multiple genes, which is known as __________.
A. inheritability
B. polygenic inheritance
C. bimodal inheritance
D. single dominance
Answer: B
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At least one-tenth of the aged are living in long-stay institutions, such as nursing homes, mental hospitals, and homes for the aged.
Answer the following statement true (T) or false (F)
An autopsy of a patient who died of Alzheimer's disease is most likely to reveal which of the following?
a) plaques in the brain and tangles inside neurons b) loss of most of the frontal lobes and scars on the myelin sheath c) enlarged ventricular spaces and reduction in the size of the cerebellum d) loss of most of the glial cells and clumps of neurons packed tightly together
Compare and contrast the views of at least three early researchers. Explain how you would reconcile these differing and sometimes conflicting views
What will be an ideal response?
Approximately what percent of babies born to mothers over the age of 40 have Down syndrome?
A. 5 out of 10 B. 1 out of 4 C. 6 out of 100 D. 1 out of 100