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Assume that an incompletely dominant gene controls the feather color in chickens so that BB produces black, BW produces a slate-gray color called blue, and WW produces asplashed-white.  A second gene on a separate chromosome controls comb shape, with the dominant gene R producing a rose comb and the recessive genes rr producing a single comb. A homozygous black, single comb-chicken is mated with a homozygous white, rose-comb chicken.  The offspring are the allowed to breed freely among themselves.  What proportion of their offspring (this would be the second filial (F2) generation) would have white feathers and single comb?    

The red blood cells in this figure have been placed in a solution where water flowed into the cells causing them to enlarge and burst. Compared to the red blood cells, the solution was:

In fruit flies, red eye color is dominant over white and eye color is sex linked on the X chromosome.  A white-eyed male is mated with a homozygous red-eyed fema1e. What percent of the offspring will be red-eyed males?

High energy electrons are moved from an electron donor to an electron acceptor in this type of reactions.

Carbon has an atomic number (number of protons) of 6.  How many electrons does the element carbon (C) have in its valence (outer) shell when it is not combined with another element?

This figure of a triglyceride belongs to which category of biological macromolecules?  

All are characteristics of living organisms except they

The majority of ATP molecules derived from glucose are generated by:

One type of RNA, mRNA:

If one strand of DNA has the base sequence GTACAT, the complementary strand of that DNA must have the base sequence: