Question

what is dna shaped like?
double helix
circle
karyotype
x - ray

Explanation:

DNA is a double - stranded molecule. Through the work of scientists like Watson, Crick, Franklin, and Wilkins, it was determined that the structure of DNA is a double helix. A double helix resembles a twisted ladder. The other options: a circle is not the shape of DNA (some bacterial DNA can be circular but the general form of DNA in most organisms is double - helix), a karyotype is a picture of an organism's chromosomes, and an X - ray is a type of electromagnetic radiation (although X - ray crystallography was used in determining the DNA structure, it is not the shape of DNA).

Answer:

Double helix