Four of the five plants listed below are
heterosporous. Select the exception.
a. angiosperms
b. cycads
c. ginkgo
d. conifers
e. ferns
Answer: e
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If you were to design a novel hydrophobic protein, which type of monomers would be most essential to incorporate in the molecule in order to achieve the desired result?
A. Amino acids with nonpolar side chains B. Purine-containing deoxyribonucleotides C. Amino acids with charged side chains D. Hydrophobic nucleic acids E. Polar amino acids
Researchers began using short tandem repeats (STRs) because
A) shorter DNA molecules were more likely to persist in a violent situation. B) each person has no more than one copy of each STR. C) STRs are nonuniformly distributed. D) restrictive enzymes cannot be used to cut short DNA molecules.
The most common type of joint in the human body is a ____
a. synovial joint b. fibrous joint c. membranous joint d. cartilaginous joint e. hinge joint
The neurotoxin that Taricha spp. possess to ward off predators is
A) TTG. B) taricha venom. C) tetrodotoxin. D) thamnophis poison.