The McDonald–Kreitman test:
a. compares substitution rates between and within species.
b. compares substitution rates across two time scales.
c. compares substitution rates across genes.
d. A and B.
e. All of the above.
D
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Thermoplasma contains an extremely small genome complexed with a highly basic DNA-binding protein
Indicate whether the statement is true or false.
Macromolecules are synthesized by a series of steps. Monomers are systematically added to the growing polymer. From what you have learned about the synthesis of macromolecules, can you suggest why people who are trying to lose weight are asked to drink plenty of water?
What will be an ideal response?
Blood pressure in veins is lower than that in arteries, and a series of ________ are necessary to prevent backflow of blood
A) one-way valves B) two- or three-way valves C) varicose veins D) tricuspid valves E) endothelial cells
What role does the plant cell wall compound lignin play in the adaptation of plants to a land environment?
What will be an ideal response?