Transfer of genes from one mature independent organism to another is called ________.
A. orthogonal gene transfer
B. horizontal gene transfer
C. vertical gene transfer
D. lateral gene transfer
Answer: B
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In species where the young are precocial, meaning requiring little parental care, males may be more likely to be what?
A. monogamous B. polygynous C. polyandrous D. altricial
The amino acid sequences in cytochrome c were determined for chickens, ducks, and humans. Scientists found a difference of 3 amino acids between chickens and ducks, and 13 differences between chickens and humans. Based on this information, one can conclude that
A. chickens are more closely related to ducks than they are to humans. B. chickens are more closely related to humans than they are ducks. C. ducks are more closely related to humans than they are to chickens. D. chickens are as closely related to humans as they are to ducks.
If you found a well-preserved fossil specimen with many velociraptor-like characteristics (an extinct dinosaur of Jurassic Park fame), which species concept would you use to determine whether it is indeed a member of the velociraptor genus, a close relative, or a novel species?
A. biological species B. phylogenetic species C. morphospecies
The following are true of endorphins except ____.
A. they affect multiple adjacent neurons B. they are natural painkillers C. they are secreted when people laugh D. they are released when people get a massage E. they are suppressed under strenuous activity