A change in the gene pool due to chance results in ________.
A. environmental variation
B. natural selection
C. genetic drift
D. a large gene pool
C. genetic drift
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In QTL mapping, the parental strains are crossed and the F1 generation backcrossed to which of the following?
A. The F2 generation B. The parental generation C. A strain that is homozygous recessive for all markers D. A wild-type organism
Select the following phylum that includes protostome animals that are segmented, bilaterally symmetric, and have a chitinous exoskeleton.
A. Arthropoda B. Annelida C. Mollusca D. Brachiopoda E. Platyhelminthes
Photosynthesis is conducted in ___________
a. the cell wall b. chloroplasts c. the nucleus d. the cell membrane
The rates of photosynthesis and respiration in a plant are controlled by the temperature in the
A) soil. B) air. C) leaf. D) root.