Please help I only have 15 minutes left

What was photo 51 with rosalind franklin?

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?