Answer:
DNA is the molecule which determines our eye colour, enzyme production and body structure.
Answer:
The Retina
Explanation:
The photoreceptors lie at the back of the retina
Answer:
The possible letters are A, C, G, and T, representing the four nucleotide bases of a DNA strand — adenine, cytosine, guanine, thymine — covalently linked to a phosphodiester backbone.
Explanation: