quiz mitosis

What phase of mitosis is the "opposite" of prophase

• metaphase

• prometaphase

• telophase

• anaphase

What is the fastest group of dividing cells in an adult ?

• embryo

• skin

• liver

• muscle cells

Which of the following does not occur during prometaphase?

• chromosomes condense

• kinetochores appear at the centromeres

• mitotic spindles attach to kinetochores

• mitotic spindle is fully developed

which of the following is not an inhibitor of the cell cycle

• cell crowding

• death of nearby cells

• cell size increase

• activity of growth hormones

during what phase of the eukaryotic cell cycle do centrosomes duplicate?

• g1 phase

• s phase

• g2 phase

• prophase

In a cell undergoing mitosis, a virus is injected into the cell that inhibits the function of condensin, what phase of the cell cycle would this affect?

• s phase

• G0 phase

• prophase

• anaphase

what are proto-oncogenes

• bad positive cell cycle regulators-lead to cancer

• good positive cell cycle regulators- heal cuts in skin

• bad negative cell cycle regulators - stop body from healing

• good negative cell cycle regulators - stop cancer from forming

What is a centrosome?

• An organelle found in animal cells that functions as the main microtubule organizing center.
• A structure in the nucleus that contains the cell's genetic material.
• A small molecule that acts as a signaling molecule in the cell.
• a protein that holds sister chromatids together in the middle of a chromosome

What keeps sister chromatids attached to eachother?

• centromere

• telomere

• centrosome

• kinetochore

A cell with 10 chromosomes undergoes mitosis. How many daughter cells are created? ___ Each daughter cell has ___ chromosomes.

• 2, 10

• 4, 10

• 4, 5

• 2, 5