DNA replication is
A. conservative.
B. interspersive.
C. semiconservative.
D. chain reference.
C
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Which of the following is NOT TRUE of the absorptive period?
A. Glucose absorption from the gut is high. B. Glucose utilization by cells is high. C. Fat utilization by cells is high. D. Synthesis of triglycerides is high. E. Breakdown of glycogen is low.
One part of Darwin's theory is that individuals with certain traits have an increased competitive edge. The source of
these traits in individuals is due to ____. a. adaptation to the stress b. development over a lifetime c. inheritance from birth d. mutation after birth e. allele changes after birth
Elastin molecules are crosslinked to each other by
A) hydrogen bonds between hydroxylysines and hydroxyprolines. B) covalent bonds between lysines. C) covalent bonds between prolines. D) hydrophobic interactions between hydroxyprolines and glycines. E) peptide bonds between glycines.
Which of the following best describes which chordate characteristics lancelets retain as adults?
A) Pharyngeal gill slits, limbs, and lobed fins B) Dorsal nerve cord, jaws, limbs, and lobed fins C) Post-anal tail, hair, jaws, and amniotic egg D) Notochord, lobed fins, and jaws E) Notochord, dorsal nerve cord, post-anal tail, and pharyngeal gill slits