Regarding the mitotic cell cycle, what is meant by a checkpoint?

What will be an ideal response?


A checkpoint is the portion of a cell cycle that is sensitive to a variety of conditions that impact the eventual health of the cell or individual. It serves as a potential halting point to facilitate DNA repair.

Biology & Microbiology

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Regarding soil and organic matter in humus, which of the following statements is true?

A) Humus is composed of inorganic nutrients, and organic matter is composed only of organic matter. B) Soil organic matter is completely decayed. C) Completely decayed soil organic matter is called humus. D) Eventually, the nutrients in soil organic matter are converted to organic form.

Biology & Microbiology

When trying to make a mammalian protein in a bacterium, expression vectors are often used. Using your knowledge of prokaryotic and eukaryotic genetics, explain why expression vectors are so important

What will be an ideal response?

Biology & Microbiology

With an intact NMDA receptor, predict the effect if the flow of calcium were blocked

a. Long-term potentiation would occur, but short-term memory would not be converted to long-term memory. b. Phosphate groups would not be attached to CaMKII. c. The hippocampus would be responsible for long-term potentiation. d. CaMKII would not be responsive to phosphate. e. Calcium groups would not be attached to CaMKII.

Biology & Microbiology

Bryophytes absorb water and nutrients through

A) rhizomes. B) rhizoids. C) tracheophytes. D) roots. E) mycorrhizae.

Biology & Microbiology