Unit 4 AP Biology Review Cell Communication & Cell Cycle

Front

Cytokinesis occurs ____ mitosis in the cell cycle.

Back

After

Front

Cytokinesis divides…

Back

Cytoplasm

Front

Which phase involves nuclear envelope forming?

Back

Telophase

Front

What binds to turn on or off gene expression?

Back

Transcription factor

Front

What happens if there is an overactive pituitary with TSH release?

Back

TRH levels decrease.

Front

What is the role of a promoter in gene expression?

Back

A promoter is a DNA sequence that initiates transcription of a particular gene.

Front

Define the cell cycle.

Back

The cell cycle is the series of events that take place in a cell leading to its division and duplication.

Front

What is the function of RNA polymerase?

Back

RNA polymerase synthesizes RNA from a DNA template during transcription.

Front

What occurs during prophase of mitosis?

Back

Chromatin condenses into chromosomes, and the nuclear envelope begins to break down.

Front

What is the significance of telophase in mitosis?

Back

Telophase is the final stage of mitosis where the nuclear envelope re-forms around each set of chromosomes.