At which one of the following checkpoints might the cell cycle be halted if all of the DNA has not yet been replicated?

A) G1
B) G2
C) M
D) T
E) S


B

Biology & Microbiology

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Obese people have a greater risk of four of the following. Which one is the exception?

a. type 1 diabetes b. colon cancer c. high blood pressure d. breast cancer e. heart disease

Biology & Microbiology

These are sometimes referred to as rough or smooth depending on the structure

a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. endoplasmic reticula

Biology & Microbiology

Each of the following hormones is an amino acid derivative except

A) histamine. B) norepinephrine. C) prostaglandins. D) epinephrine. E) thyroxine.

Biology & Microbiology

A cell contains intermediate filaments, to which organism must the cell then belong?

a. to a unicellular organism b. to a multicellular organism c. to a protist d. to a bacterium

Biology & Microbiology