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DNA Crossword

Across
The combination of a single base.
Ribonucleic acid, instead of thymine contains sugar.
This pair discovered and built a model of the structure of DNA from a stolen photograph.
When a part of the genetic code is removed.
This women photographed the shape of DNA. It was later stolen and given to Watson and Crick. (hint last name only)
Down
When part of the genetic code is replaced.
Segment of DNA that codes a particular protein.
The building block of life. Its shape is a double helix.
This man discovered the chemicals such as Adenine and Cytosine in the nucleus of a cell.
When an additional part to the DNA is added.