Cell Cycle and Cell Division - Phoenix College

[Pages:40]Cell Cycle and Cell Division

Why Do Cells Divide?

? Reproduction ? Growth and Development ? Tissue Renewal

The Cell Cycle

What Structures Do Divide When The Cell Divides?

33% 33% 33%

1. DNA 2. chromosomes 3. nucleus

DNA

chromosomes

nucleus

What is a Chromosome?

What is a Chromosome?

A chromosome is a molecule of DNA

50%

50%

1. True 2. False

True

False

How many molecules of DNA are there in one of your skin cells?

25% 25% 25% 25%

1. 23 2. 46 3. 92 4. 12

23

46

92

12

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