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The Endowment for Human Development

The Endowment for Human Development

Improving lifelong health one pregnancy at a time.

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DNA Structure

#7, Slide 6 of 312

DNA Structure

From The Biology of Prenatal Development.

Note:

Each side of the ladder is made from alternating deoxyribose and phosphate molecules.

Label Key:

1. sides of ladder

2. rungs of ladder

All ages referenced to fertilization, not last menstrual period.

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