Beyond the ladder-like structure described above, another key characteristic of double-stranded DNA is its unique three-dimensional shape. The first photographic evidence of this shape was ...

Laying the Groundwork: Levene Investigates the Structure of DNA Meanwhile ... the first to discover the carbohydrate component of DNA (deoxyribose); and the first to correctly identify the ...

Later it was found that the sugar in nucleic acid can be ribose or deoxyribose ... This way DNA can reproduce itself without changing its structure -- except for occasional errors, or mutations.

DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

DNA is a complex molecule that consists of two strands coiled around each other to form a double helix structure. Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding ...

The basic units (monomers) of DNA are nucleotides. These nucleotides consist of a deoxyribose sugar, phosphate and base. The nucleotides are identical except for the base, which can be an adenine ...

the helix structure is unwound special molecules break the weak hydrogen bonds between bases, which are holding the two strands together this process occurs at several locations on a DNA molecule ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that comprise the human genome. But where and how does the famous double helix fit into ...