Mutations are important because they
A) are always beneficial to the individuals affected by them.
B) usually provide an individual with increased reproductive rates.
C) occur in response to environmental demands.
D) provide variation that can result in evolutionary change.
D
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True or false: it is impossible to override a genetic predisposition to a disease such as skin cancer
A. true B. false
What is the function of an exonuclease?
a. to remove nucleotides one at a time from the end of a single-stranded nucleic acid b. to remove base pairs one at a time from the end of a double-stranded nucleic acid c. to break individual phosphodiester linkages within single-stranded nucleic acids, generating discrete fragments d. to break individual phosphodiester linkages within double-stranded nucleic acids, generating discrete fragments e. to synthesize nucleic acids
a release of melatonin earlier in the evening
What will be an ideal response?
The nearest living relatives of crocodiles and alligators are
A. birds. B. lizards. C. snakes. D. turtles. E. manatees.