Describe factors that threaten normal prenatal development
What will be an ideal response?
The answer should describe the potential effects that poor diet, teratogens,
drugs,alcohol, and cigarette smoking can have on normal prenatal development.
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Which of the following is true of a trait controlled by a dominant gene?
A) The trait will be expressed even if the instructions of the corresponding gene in the other half of the pair are different. B) The trait may or may not be expressed, depending upon whether environmental conditions facilitate or prevent the expression of the trait. C) The trait will always be a positive, beneficial trait. D) The trait will be expressed only if the instructions of the corresponding gene in the other half of the pair are the same.
Trephination was an ancient procedure that…
a) was performed in order to ‘cure' an individual of some ailment b) removed the heart of an individual, because all thoughts and emotions were thought to originate there c) involved the surgical opening of the skull d) a and c e) b and c