Organisms composed of cells that contain nuclei are ... Crick were pursuing a definitive model for the stable structure of DNA inside cell nuclei. Watson and Crick ultimately used Franklin's ...

In 1953, Francis Crick and James Watson described the molecular shape of DNA as a "double helix." Double-stranded DNA is composed of two linear strands that run opposite to each other, known as ...

Based on this information, Watson and Crick made a failed model ... just like the one before. This way DNA can reproduce itself without changing its structure -- except for occasional errors ...

Rosalind Franklin, from the King's College team, made an X-ray diffraction image of DNA, which is known as Photograph 51. This showed that DNA had a helix shape. Without her knowledge, one of her ...

for they had in fact discovered the structure of DNA, the chemical that encodes instructions for building and replicating almost all living things. The stunning find made possible the era of "new ...

DNA molecules are large and complex. They carry the genetic code that determines the characteristics of a living organism. The diagram shows the relationship between the cell, its nucleus, the ...

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 ... The code consists of 64 codons, ...

Just as we use bricks to construct buildings, we use nanometer-sized building blocks called "motifs" and "tiles" made of DNA ...

Abdenour Soufi from the University of Edinburgh reveals how transcription factors (TFs)—key proteins that regulate gene activity—navigate DNA and chromatin structures to determine cellular ...

Johns Hopkins engineers have developed gel strips that change shape when given chemical instructions written in DNA code. These "gel automata," measuring just centimeters, can grow or shrink ...