Here's why:
* DNA Structure: DNA is a double helix, composed of two strands of nucleotides held together by hydrogen bonds. The structure resembles a twisted ladder.
* Protein Structure: Proteins are made of amino acids, and their structure is more complex than DNA. Beta pleated sheets are one of the secondary structures proteins can form. They are formed by hydrogen bonds between amino acids within the polypeptide chain, creating a pleated sheet-like structure.
Let me know if you have any other questions about DNA or protein structure!