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Anvisha [2.4K]
4 years ago
13

PLEASE answer!!!!!!!!!

Biology
1 answer:
Sloan [31]4 years ago
7 0

3. The answer is false, because protons are positive and electrons are negative. If there are more protons than electrons, then the atom would be positively charged.

The answer is false.

4. The answer is true, because if the number of protons and electrons are the same, then the charges would cancel out, leaving the atom negative.

The answer is true.

I hope this helps. :)

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Un nucleótido esta formado por una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unido a un grupo de fosfato y a una base nitrogenada.

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ADN,    ARN son polímeros formados por largas cadenas de nucleótidos.

Las bases utilizadas en el ADN son: adenina, citosina, guanina y timina

En ARN, la base  uracilo y ocupa el lugar de la timina.

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