upon fertilization, the offspring have the ______ number of chromosomes
Fill in the blank(s) with the appropriate word(s).
diploid (the same as their parents)
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Dr. Ratard was trying to determine the cause of a mysterious epidemic affecting fish in the gulf of New Mexico. His proposal that the deaths were caused by an organism called a protist is considered a(n) _________
A. theory. B. data set. C. hypothesis. D. conclusion. E. experiment.
Rebecca Lancefield differentiated streptococci on the basis of differences in their:
A. cell wall carbohydrates in a serological test. B. patterns of hemolysis on blood agar. C. ability to produce catalase. D. gram stain appearance. E. All of the choices are correct.
The genetic material (DNA) of eukaryotes is organized into
a. centrioles. b. spindles. c. chromosomes. d. microtubules.
Every amino acid contains
A) an amino group and a hydroxyl group. B) an amino group and an acetyl group. C) a hydroxyl group and a carboxyl group. D) a carboxyl group and an amino group. E) a carboxyl group and a hydroxyl group.