A student wants to modify model 1 so that it represents an RNA double helix instead of a DNA double helix. Of the following possible changes, which would be most effective in makin... A student wants to modify model 1 so that it represents an RNA double helix instead of a DNA double helix. Of the following possible changes, which would be most effective in making model 1 look more like RNA than DNA?
Understand the Problem
The question is asking which modification to a modeled DNA structure would most effectively change it to resemble an RNA structure. It is focused on understanding the structural differences between DNA and RNA.
Answer
Changing the deoxyriboses to riboses by adding −OH groups.
The most effective change would be changing the deoxyriboses to riboses by adding −OH groups.
Answer for screen readers
The most effective change would be changing the deoxyriboses to riboses by adding −OH groups.
More Information
RNA contains ribose sugar, which has a hydroxyl group (-OH) at the 2' carbon, while DNA contains deoxyribose, which lacks this hydroxyl group and has only a hydrogen atom at the same position.
Tips
A common mistake is to focus on the base pairs or overall structure of the double helix when the distinctive ribose sugar with an extra -OH group is the most effective characteristic to modify.
Sources
- Brainly - Modify model to represent RNA - brainly.com
- Chegg - RNA and DNA double helix - chegg.com
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