Mitosis and Cell Cycle Concepts

Front

During which phase of mitosis are the sister chromatids separated and consequently become daughter chromosomes?

Back

Anaphase

Front

The figure below shows a cell in the mitotic stage of

Back

Metaphase

Front

Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. Why does this occur?

Back

Cell division can be inhibited by the proximity of other cells.

Front

A translocation may lead to cancer if it

Back

disrupts control of expression of genes that regulate the cell cycle.

Front

A mutation results in a cell that no longer produces a normal protein needed for the M-phase checkpoint. What would likely be the immediate result of this mutation?

Back

The cell would never leave metaphase

Front

If a cell is inhibited during the S phase of its cycle, it will not reproduce due to lack of

Back

DNA Synthesis

Front

Which gene is named for its association with an eye tumor?

Back

RB

Front

A mutation that causes an increase in function in a tumor suppressor gene would not likely cause cancer because a tumor suppressor protein

Back

Does not promote cell division.

Front

A positive genetic test for telomerase in an adult somatic body cell, such as a fibroblast, may indicate that

Back

The cell is cancerous.

Front

If there are 20 centromeres in a cell, how many sister chromatids are there?

Back

40