Assume that in guinea pigs, dark brown fur (B) is dominant to black fur (b). If you mate a black guinea pig with a homozygous brown guinea pig, what proportion of the progeny will be homozygous?
A) none
B) 1/4
C) 1/2
D) 3/4
E) all
A) none
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Indicate whether this statement is true or false.
Similarities between organisms in biomes that are widely separated on the planet are an indication of:
a. invasive species becoming adapted to their new home b. morphological convergence c. recombinant DNA d. common ancestry e. founder effects
Birds are thought to have evolved from dinosaurs. In considering birds and comparing them to dinosaurs, which trait
would be derived? a. brain b. legs c. eyes d. lack of teeth e. bones
A(n) ________ is an instrument used to separate subcellular structures and macromolecules on the basis of size, shape, and density. ________ developed this instrument in Sweden during the period 1925–1930
Fill in the blank with correct word.