1 Point
What are the four nitrogenous bases found in DNA?
A. Cytosine, thymine, pyrimidine, and purine
B. Adenine, guanine, cytosine, and thymine
C. Adenine, guanine, cytosine, and uracil
D. Adenine, guanine, pyrimidine, and purine
SUBMIT

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Suppose that on a small island off the coast of scotland, 32 percent of the population has blue eyes, which means that these individuals must be homozygous for the blue eye color gene (bb). the only other eye color found on the island is brown, and individuals that are homozygous for the brown eye color gene (bb) or heterozygous (bb) will have brown eyes because brown is the dominant gene. assume this population is in hardy-weinberg equilibrium. if 100 babies are born next year, how many of these would you expect to have brown eyes and be heterozygous? a. 58 b. 49 c. 29 d. 43

Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body