Cytosine, uracil, and thymine are single-ringed nitrogen-containing organic bases called ____________________. Fill in the blank(s) with the appropriate word(s)
pyrimidines
You might also like to view...
An incompletely dominant gene controls the color of
chickens so that BB produces black, Bb produces a slate-gray color called blue, and bb produces splashed white. A second gene controls comb shape, with the dominant gene R producing a rose comb and r producing a single comb. If a pure-breeding, black chicken with a rose comb is mated to a splashedwhite chicken with a single comb in the F2 generation, what fraction of the offspring will be blue with rose comb? a. 9/16 b. 3/8 c. 3/16 d. 1/8 e. 1/16
Excess glucose is converted into glycogen in
a. the pancreas. b. the liver. c. the thymus. d. the thyroid. e. none of these.
About what portion of all couples are affected by infertility?
A. Fewer than 1 percent B. About 3 percent C. About 8 percent D. About 13 percent E. Over 20 percent
Gross primary productivity is the rate of photosynthesis minus the rate of plant respiration
____________________ Indicate whether the statement is true or false.