A particular flower can be purple, blue, red, or white. A pure-breeding red plant is crossed with a pure-breeding white one, and the F1 are then crossed to produce an F2 generation. Which of the following phenotypic ratios in the F2 indicate that flower color in these plants is controlled by two genes?
A) 2:1
B) 3:1
C) 1:2:1
D) 9:3:4
D) 9:3:4
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a. C3 b. C4 c. CAM d. C3 and CAM e. C4 and CAM
Microfilaments function in
A) muscle contraction. B) cytoplasmic streaming. C) cell division. D) maintenance of animal cell shape. E) All of the above.
As a group, fungi are _____.
a) photoautotrophs b) decomposers c) herbivores d) carnivores e) chemoautotrophs
Which one of the following is maintained during a chemical reaction?
A. the number of atoms present in the reactants B. the identity of the atoms present in the reactants C. the arrangement of chemical bonds present in the reactants D. the number and identity of the atoms present in the reactants E. the number and identity of the atoms, and the arrangement of chemical bonds present in the reactants.