Which of these definitions of species most closely fits the biological species concept?
A) For asexually reproducing organisms, members of the same species are based on DNA and RNA base sequence analysis.
B) Members of the same species can mate and produce fertile offspring.
C) Members of the same species are all morphologically similar.
D) Members of the same species look almost exactly alike.
Answer: B
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A. Nauplius B. Telson C. Uropods D. Cheliped
The expression of a gene may depend on ________
a. the type of organism b. environmental conditions c. the type of cell d. all of these
Sutures
What will be an ideal response?
The double helix model of DNA structure was proposed by
A. Chargaff. B. Griffith. C. Franklin. D. Watson and Crick. E. Avery.