Genetic and environmental influences do not interact or contribute to the phenotypic outcomes in precise ways
A. true
B. false
B
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In order for a tumor cell to metastasize, which of the following would you expect to happen?
A. a decrease in cadherin expression and an increase of integrin expression B. an increase of cadherin expression and a decrease in integrin expression C. an increase in both cadherin and integrin expression D. a decrease in both cadherin and integrin expression
In a plant, analysis of Rubisco reveals that, in some proteins, rbcL is deficient while rbcS is normal. In other Rubisco proteins, both rbcL and rbcS are normal. What does this indicate about the two genes encoding these subunits?
What will be an ideal response?
Which of the following responses involves the activation of ion channels?
a. Ras pathway activation of microfilament assembly in neutrophils b. steroid hormone regulation of gene expression c. Ras pathway activation of genes for cell division d. peptide-stimulated assembly of microtubule assembly in neutrophils e. serotonin-stimulated transmission of a neural impulse
In the figure above:
a. the percent of fish found in larger groups increases as predation pressure increases. b. the percent of fish found in larger groups increases as predation pressure decreases. c. the percent of fish found in larger groups is not affected by changes in predation pressure. d. None of the above.