Each gene mutates at a characteristic frequency
Indicate whether this statement is true or false.
TRUE
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Introduced species become invasive when they
A. compete with native species without expanding their range. B. move from temperate to tropical settings. C. expand their range and outcompete native species. D. lead to a cost for humans. E. fill an empty ecological niche.
Sequencing the yeast genome received priority because
A) yeast causes infections in humans. B) yeast is essential in baking and brewing. C) the number of yeast genes is a round number - 6,000. D) one-third of the genome has its counterparts among mammals.
All of the following structures are associated with an intestinal fold except: a. salivary secretions
b. lymph vessel. c. microvilli. d. blood vessel. e. villi.
What is the function of the cryptochromes?
a. phototropism b. gravitropism c. circadian rhythm d. defense against herbivory