Which group of organisms will have a coelom and a body that is segmented?
a. Cnidaria
b. Annelids
c. Planarians
d. Porifera
e. Platyhelminthes
b
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In a phylogenetic tree, positions indicating a common ancestor are referred to as:
A. branches B. nodes C. trunks D. roots E. limbs
Which of the following is consistent with the principle of base pairing?
(a) purine-purine (b) pyrimidine-pyrimidine (c) adenine-thymine (d) guanine-thymine
__________ is the wood of flowering plants and __________ is the wood of conifers
a. Hardwood; softwood b. Summer wood; spring wood c. Softwood; hardwood d. Spring wood; summer wood e. Heartwood; softwood
To study an organism's transcriptome by microarray, ________ is hybridized onto DNA silica chips containing gene sequences that are ________ to the sequence
a. cDNA / complementary b. cDNA / identical c. mRNA / complementary d. mRNA / identical