A nonfunctional gene near a similar but functional gene is called a(n)
A) pseudogene.
B) expanded gene.
C) phenocopy.
D) transposon.
A) pseudogene.
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Most intertidal chitons are considered
a. grazers. b. predators. c. scavengers. d. filter feeders. e. infauna.
The organism that causes malaria
a. is a multicellular protozoan. b. is the anopheles mosquito. c. attacks the protein globin in skin cells. d. is a single-celled protozoan. e. causes the overproduction of red blood cells.
If the two parents are each heterozygous for widow's peak and having freckles, what is the chance that any of their children will have the same phenotype?
A) 9/16 B) 3/16 C) 1/2 D) 1/16
If glucose is metabolized under completely anaerobic conditions, pyruvate
A) is converted to NADH. B) is converted back to fructose until the concentration of oxygen increases. C) leaves the fluid portion of the cytoplasm and enters the mitochondrial matrix. D) immediately enters the Krebs cycle. E) is converted by fermentation to lactate or CO2 + ethanol.