Concept of Cell Division

The organelles that holds and protects the genetic material (DNA) in eukaryotic cells.

• Nuceolus

• Nucleoplasm

• Nucleus

• Nuclear pore

Which label refers to chromatin?

• A

• B

• C

• D

The cellular structure of condensed chromatin that forms in the nucleus prior to mitosis is

• centromere

• centriole

• chromosome

• chromatid

Chromosomes are made up of two identical sister _____________.

• chromatin

• chromatids

• centromeres

• centrioles

Which of the following does not describe the purpose of the mitosis cell cycle?

• To make more of the same cells.

• For growth and repair.

• To prevent the cell from becoming too large.

• To produce haploid gametes.

Which of the following is the best describes cancer?

• Absence of cyclins in the DNA.

• Multiple gene mutations on a chromosome of DNA.

• Uncontrolled cell growth caused by mutations in genes that control the cell cycle.

• Presence of genetic defects caused by hereditary disorders.

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

• In order for genetic information to be transferred into daughter cells.

• In order for the cell to be able to increase in size.

• In order for the DNA to be contained in the nucleus.

• In order for the cell to re-order the DNA sequencing in the new cells.

Tags

NGSS.HS-LS1-4

The ___________ holds the replicated sister chromatids together.

• centriole

• chromosomes

• centromere

• kinetochores

What did Virchow discover?

• Living things are composed of cells
• Discovered animals are composed of cells
• Discovered plants are composed of cells
• Introduced the word 'cell'

Which structure is the attachment site of spindle fibres during cell division?

• centromeres

• kinetochores

• centrioles

• centrosomes