The model that gives a true representation of a DNA molecule would be the 4th model.
What is the structure of DNA?
According to Watson and Crick, the DNA is a double strand molecule with each strand twisting around one another to form a ladder-like, double helix structure.
Also, there is a complementarity of nucleotide bases such that Adenine (A) always pairs with Thymine (T) while Guanine (G) always pairs with Cytosine (C).
Thus, model 4 ticks all the characteristics of a typical DNA molecule.
More on DNA can be found here: https://brainly.com/question/264225
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