Which of the following proteins is responsible for advancing a cell through the four phases of the cell cycle?

A. caspases
B. cyclins
C. claudins
D. endonucleases
E. cofactors


B. cyclins

Biology & Microbiology

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The ends of chromosomes have areas of repeated DNA called centromeres

Indicate whether the statement is true or false

Biology & Microbiology

Human society favors outbreeding, or the mating of individuals that are genetically unrelated

Indicate whether the statement is true or false

Biology & Microbiology

When the food supply is far from a beehive, the scout bee will perform a(n) waggle dance. Indicate whether the statement is true or false

Biology & Microbiology

Thermoregulation depends on monitoring of blood temperature. What structure acts as the mammalian temperature sensor?

A. peripheral blood vessels B. adrenal medulla C. thyroid D. anterior pituitary gland E. hypothalamus

Biology & Microbiology