by 
Anonymous
ANSWERS: 1
-
The primary structure of a biological molecule is the exact specification of its atomic composition and the chemical bonds connecting those atoms. In DNA, the linear chain of bases is generally just referred to as the "sequence," which usually forms a linear double helix with little secondary structure. The primary structure of a biological polymer to a large extent determines the three-dimensional shape known as the tertiary structure, but nucleic acid and protein folding are so complex that knowing the primary structure often doesn't help either to deduce the shape or to predict localized secondary structure. Secondary structure is the general three-dimensional form of local segments of biopolymers such as proteins and nucleic acids. It does not describe specific atomic positions in three-dimensional space, which are considered to be tertiary structure.
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC