Cell Cycle

Before cells can divide, what must be copied?

• mitochondria
• cytoplasm
• DNA
• cell membrane

The division of the nucleus is known as...

• DNA replication
• mitosis
• interphase
• cytokinesis

Humans have ___ chromosomes in every body cell.

• 92

• 23

• 46

• 64

Each half of a duplicated chromosomes is called a...

• centromere

• daughter strand

• chromatid

• chromatin

The ___ holds sister chromatids together.

• centriole
• chromosome
• centromere
• spindle fiber

The cell spends most of it's life in...

• mitosis
• cytokinesis
• interphase
• prophase

The structure labeled A is a...

• chromatid
• centriole
• centromere
• chromosphere

The structures labeled B are...

• centrioles
• chromatids
• centromeres
• chromosomes

A human cell has 46 chromosomes before cell division. How many chromosomes will the daughter cells after cytokinesis?

• 12
• 23
• 46
• 92

Cells of multicellular organisms must replicate for...

• growth

• repair of damaged cells

• reproduction

• all answer choices