Determining the exact nucleotide sequence of a gene or gene fragment obtained from an unknown organism is based on which of the following methods?
a. Hybridization
b. Sequencing
c. Amplification (PCR)
d. Genotypic
B
The nucleotide sequence of a microorganism's genome is the blueprint for that organism; there-fore, knowledge of its nature is a valuable tool in identifying infectious agents in clinical speci-mens.
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Which of the following is not a basic need of the cell?
A) molecular building blocks B) 100% efficiency C) energy D) information E) chemical catalysts
The phyla Bryozoa and Brachiopoda have which feature in common?
A. nephridia B. a lophophore C. a radula D. setae E. a muscular foot
Both bone and blood are types of connective tissue.
a. true b. false
Darwin suggested that the animals on the Galapagos Islands had become new species because they were adapting to new, local environments.
a. true b. false