All of the genes shared by a population are its
A. gene frequency.
B. gene pool.
C. fitness.
D. gene flow.
B. gene pool.
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How many amino acids are common to all living systems?
A) 10 B) 20 C) 30 D) 100
Which of the following best describes the sex chromosomes?
a. They are non-homologous. b. They are completely homologous. c. They are heterozygous. d. They are partially homologous, but also have unique regions.
The cauliflower-like growths on the genitalia called condylomata acuminata are caused by (herpesviruses/papillomaviruses/parvoviruses).
Fill in the blank(s) with the appropriate word(s).
If two otherwise dissimilar organisms share similar genomic DNA, to what would you attribute the genomic similarity?
A. The shared genes are ancient and probably no longer function within the altered physiological states of modern organisms. B. The two taxa are more closely related than formerly believed. C. The shared genes developed early in evolution and are likely to be applicable to a wide diversity of organisms. D. DNA is not a reliable basis for phylogenetic decisions. E. The shared genes have evolved a number of times and have no phylogenetic significance.