Read each of the statements that describe the function of a cell cycle regulator. Then drag each sentence into the correct category. regulates checkpoints
speeds up or slows down
stops cell cycle
makes sure chromosomes
have replicated
cell cycle
Internal regulators
External regulators

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

gag reflex, poor dentition, gum retraction

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