The body of arthropods includes
(a) a head.
(b) a thorax.
(c) an abdomen.
(d) all of the above.
(d) all of the above.
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Which of the following statements about sex-specific behaviors in Anolis carolinensis lizards is not correct?
A. If Anolis carolinensis female lizards are housed in a laboratory under a spring lightdark cycle, they prepare for reproduction and 80% of the individuals have active egg follicles in the ovary. B. In Anolis carolinensis lizards, if a single male is added to an all-female population under a spring light-dark cycle, then 100% have active egg follicles. C. In Anolis carolinensis lizards, if a group of males is added to an all-female population, males become more interested in fighting than in mating and do not court. D. If the courtship stimulus is not present, then ovarian development rate increases in Anolis carolinensis lizards. E. In Anolis carolinensis lizards, castrated males, which do not produce testosterone, have no effect on rates of ovarian development in females.
If a population satisfies the Hardy-Weinberg equilibrium model, what can you assume about that population?
A. It is relatively small. B. Evolution is occurring. C. Gene flow is occurring. D. Allele and genotype frequencies are stable.
Height, weight, and eye color are examples of phenotypes that illustrate
a. codominance. b. continuous variation. c. pleiotropy. d. incomplete dominance. e. multiple allele systems.
QTL mapping resembles linkage analysis primarily because __________
A) it uses statistics to analyze its data B) it uses the location of a known DNA marker C) it uses the three-point mapping method D) the distances are reported in cM E) the results are quantifiable