Answer:
The correct answer is "Retinal".
Explanation:
Retinal, also known as retinaldehyde, is a form of vitamin A that plays an important role in vision. It was formerly known as retinene, and it comes from its name from retina, the thin layer of tissue that its inside the eye. Retinal is an important element in vision, it allows the conversion of light into metabolic energy.
C experimentation. For a scientist, assessing the validity of information requires experimentation.
According to Chargaff's rule, pyrimidine and purine occur in equal ration (1:1) in the DNA of all cells. Adenine (A) and Thymine (T) occur in equal proportion while Guanine (G) and Cytosine (C) occurs in equal proportion in the DNA of an organism. This pattern is repetitive and found in both DNA strands.
I'm pretty sure your answer is correct :)
