The Pax6 gene
A. is a master control gene for eye development.
B. codes for a protein that controls the expression of many other genes.
C. mutant can cause aniridia in humans.
D. is a homolog to the eyeless gene in Drosophila.
E. All of the choices are correct.
E. All of the choices are correct.
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Acidic foods generally need a higher canning temperature than do nonacidic foods
Indicate whether the statement is true or false.
Ras proteins are of interest to researchers because of their role in ____
a. reproduction b. linking plant hormones to germination c. the development of many types of cancer d. relieving cluster headaches e. eliciting the fight-or-flight response
During inflammation, tissue damage activates ____, which release ____
a. cytotoxic T cells; cytokines b. macrophages; histamine c. mast cells; histamine d. neutrophils; cytokines e. eosinophils; chemokines
The abiotic factor that has had the greatest evolutionary effects on deep-sea animals is:
a. low temperatures. b. high pressure. c. low nutrients. d. lack of light. e. varying salinity.