The idea of deliberately improving the genetic qualities of the human race is referred to as ____
a. genomics
b. genetic cloning
c. gene therapy
d. eugenics
e. euthanasia
ANSWER: d
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Which one of the following statements about virus classification is not correct?
A. Viruses are classified based on whether their genetic material is double-stranded DNA or RNA. B. Viruses are classified based on whether their genetic material is partially doublestranded or partially single-stranded. C. Viruses are classified based on whether the single-stranded DNA or RNA that serves as their genetic material has a positive or negative sense. D. All of the answer options are correct.
scientific method
What will be an ideal response?
A challenge to traditional (pre-1860) ideas about species came from embryology, when it was discovered that _____.
A. mutations have a far more dramatic effect on embryos than on adult organisms B. the embryological development of many plants and animals is almost identical C. the more advanced the animal, the more slowly it develops D. embryos of dissimilar organisms, such as sharks and humans, resemble each other E. all animals develop similar embryonic gills
Stomach emptying is controlled by the secretion of ____
a. gastrin b. CCK c. epinephrine d. HCl e. ghrelin