The Hardy-Weinberg law is
a. useful in determining the extent to which a sexually reproducing population is evolving.
b. used to predict when genetic drift will occur in a sexually reproducing population.
c. useful in determining the extent to which polyploidy is occurring in specific plant populations.
d. used to predict when specific groups of organisms will become extinct.
e. useful in determining if a patient has a genetic disease.
ANSWER: a
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Inside the CNS, groups of neuronal cell bodies that are clustered together to perform basic functions are termed
A. nerve nets. B. ganglia. C. nuclei. D. spinal cords. E. soma.
Which of the following statements is false?
a. Crossing over tends to reduce the frequency that two linked genes are inherited together. b. Independent assortment of homologous chromosomes during meiosis increases variation. c. Crossing over leads to variation. d. An abnormal number or structure of chromosomes may influence the course of evolution. e. The closer together genes are found on a chromosome, the greater the chance that crossing over will occur between them.
The hardest part of implementing the instrumental variables approach is:
A. determining which of your instrumental variables are relevant. B. finding and defending the exogeneity condition of your instrumental variable. C. reporting the appropriate standard errors. D. deciding between using two-stage least squares or generalized method of moments.
The primary palate, arising from the medial nasal prominence, surrounds the anterior-most ____ teeth.
A. 2 B. 4 C. 6 D. 8 E. 10