If an environment changes rapidly, organisms with _____ will be more likely to survive and reproduce.
A. the correct allele frequency
B. existing neutral mutations
C. existing beneficial mutations
D. the ability to produce beneficial mutations
E. the ability to adapt their genotype
Ans: C. existing beneficial mutations
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Which feature is a unique, derived trait present in all birds?
a. ability to fly b. four-chambered heart c. feathers d. lack of a urinary bladder e. migration
Virions infecting some bacteria possess the enzyme ________ that makes a small hole in the bacterial cell wall, allowing the viral nucleic acid to enter
A) peptidoglycanase B) infectase C) lysozyme D) nuclease
Which one of the following would be least likely to cross a lipid bilayer?
A. O2 B. CO2 C. ATP D. H2O E. N2
Where does glycolysis takes place?
A. mitochondrial matrix B. mitochondrial membrane C. mitochondrial inner membrane D. mitochondrial intermembrane space E. cytosol