If damaged DNA is detected and cannot be repaired, which protein can trigger apoptosis?
a. retinoblastoma proteins (Rb)
b. cyclin-dependent kinase (Cdk)
c. p53
d. p21
c. p53
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Which of the following proteins is associated with the precise control of where microtubules form and depolymerize?
A) Tau B) stathmin/Op18 C) kinesin D) catastrophins E) MAP 2
Glomerulonephritis will lead to
a. kidney stones. b. bladder infections. c. kidney cysts. d. inflammation of the urethra. e. little or no filtering of the blood
Describe the steps required for a plant to take up minerals from the environment.
What will be an ideal response?
When mosquitoes are abundant, purple martins flock to the area and feed exclusively on them. When mosquito populations are not large, purple martins are similarly scarce and feed on other insects. This is an example of
A) density-dependent regulation. B) exotic regulation. C) ecosystem carrying capacity. D) density-independent regulation. E) community carrying capacity.