Vertebrate forelimbs evolved through which mechanism?
A. Morphological convergence
B. Divergent evolution
C. Analogous evolution
D. Homologous evolution
E. Structural adaptation
Answer: B
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The level of depolarization at which an action potential will be triggered is referred to as the
A. refractory potential. B. threshold potential. C. resting potential. D. membrane potential. E. cationic potential.
If you were to take a cross section of a tree from the tropics, would you be able to determine the accurate age of the
tree? Why or why not? What will be an ideal response?
Sphingomyelin contains two hydrocarbon chains linked to _______ rather than to glycerol.
a. choline b. serine c. glycine d. tyrosine
Consider two loci (A, B) each with two alleles (A, a; B, b). The frequency of A is known to be = 0.3, the frequency of b is known to be = 0.25 and the value of linkage disequilib-rium between loci A and B is known to be = 0.15
What is the expected haplotype frequency of haB? Please show your work. What will be an ideal response?