The molecules that bind to a repressor and cause it to no longer bind to the operator are called
A. activators.
B. repressors.
C. introns.
D. inducers.
D
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_________ make it possible for researchers to study how an entire genome responds to an environmental stimulus
A. Bioinformatics B. PCR reactions C. DNA microarrays D. The BLAST program
Answer the following statements true (T) or false (F)
1. Chemical defenses are found only among animals. 2. The mimicry of coral snakes by scarlet king snakes is an example of Batesian mimicry. 3. Fleas are endoparasites. 4. Phoretic species are commensals.
What plants have been significantly altered by humans through artificial selection?
_____ maize. _____ acorns. _____ rice. _____ wheat. _____ Virginia creeper.
__________ can be used to estimate the population density for mobile animals. Fill in the blank(s) with the appropriate word(s)