Cell Cycle & Mitosis

When DNA in a cell is uncoiled and spread throughout the nucleus, it is called:

• Chromosomes

• Chromatin

• Chromatids

• Telomeres

Which of the following is NOT a correct statement about the events of the cell cycle?

• Interphase is usually the longest phase

• DNA replicates during the S phase

• Cell division ends with cytokinesis

• The cell grows during the Mitotic phase

Chromosomes are held together by a structure called the centromere. What is the identical, one half of the chromosome called?

• Chromosomes

• Chromatin

• Chromatids

• Telomeres

During cell division, chromosomes lose short pieces every time DNA is replicated. In order to protect genetic information, chromosomes have a certain structure that protects genetic information. What is this structure called?

• Telomeres

• Spindle fibers

• Centromeres

• Chromosomes

What is the difference between diploid and haploid cells?

• Diploid cells contain one copy of each chromosome from a homologous pair

• Haploid cells contain one copy of each chromosome from a homologous pair

• Haploid cells are somatic cells

• Diploid cells are gametes.

During which stage of the cell cycle is DNA replicated?

• Prophase

• S phase

• Cytokinesis

• Mitosis

The nuclear envelope breaks down during prophase. When does it reappear?

• Metaphase

• Anaphase

• Mitosis

• Telophase

Cells go through interphase (longest stage of the cell cycle) before dividing. What is the significance of this stage of the cell cycle?

• Interphase is the longest stage of the cell cycle

• Interphase ensures that the cell has grown large enough and contains undamaged DNA that is needed for mitosis

• DNA is replicated during the Growth 1 phase

• Cell is split into 2 genetically unique daughter cells

How does cytokinesis differ between animal cells and plant cells?

• The cell membrane in animal cells will pinch inward

• Plant cells synthesize more cytoplasm

• Only animal cells undergo cytokinesis

• Only specific plant cells form a cell plate

What is the function of spindle fibers during mitosis?

• To condense chromosomes

• To uncoil chromosomes

• To help create new nuclei for the daughter cells

• To pull sister chromatids to opposite sides of the cell