In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over
spotted (s). In the F2 generation of a cross between BB ss with bb SS, what fraction of the offspring
would be expected to be black and spotted?
a. 1/16
b. 9/16
c. 1/9
d. 3/16
e. 3/4
D
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Diseases that are good candidates for eradication have
A) only a human reservoir. B) no asymptomatic phase. C) an environmental reservoir. D) only a human reservoir and no asymptomatic phase.
Photorespiration occurs because __________
A. there is more O2 than CO2 in the atmosphere B. rubisco is a slow catalyst C. rubisco is a selective catalyst D. there is more O2 than CO2 and rubisco is a slow catalyst E. there is more O2 than CO2 and rubisco is a selective catalyst
Monoclonal antibodies used in many commercial applications are derived from ____
a. mice b. viruses c. genetically modified bacteria d. human volunteers e. horses
In peas, Mendel found that tall plants and yellow peas are dominant. The phenotype for a pea plant
with the genotype TtYy would be: a. heterozygous. b. Ty. c. short with yellow peas. d. tall with green peas. e. tall with yellow peas.