The plants and animals now present on acreage
from which the trees were removed ten years
earlier represent
a. primary succession.
b. a climax forest.
c. pioneer species.
d. secondary succession.
e. species introduction
D
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Transformation and homologous recombination allow for the formation of heteroduplex DNA. Which of the following would occur during DNA replication of this molecule?
A) One daughter strand is complementary to the recombinant DNA molecule, while the other daughter strand is complementary to the parent DNA molecule. B) Both daughter strands are complementary to the recombinant DNA molecule. C) Both daughter strands are complementary to the parent DNA molecule. D) None of the answers are correct.
An electron microscope uses ________ lenses to focus beams of electrons onto a specimen.
Fill in the blank(s) with the appropriate word(s).
Of the following invertebrate groups, the group most closely related to the chordates is the _____
a. annelids b. mollusks c. crustaceans d. echinoderms e. cnidarians
Epstein-Barr virus is routinely isolated from cases of cervical cancers.
Answer the following statement true (T) or false (F)