Although the DNA code from cell to cell is the same ... Within the first month of embryonic development, cells are changing into different forms. If they didn't, all of the body's cells would ...

Later it was found that the sugar in nucleic acid can be ribose or deoxyribose, giving two forms: RNA and DNA. In 1943, American Oswald Avery proved that DNA carries genetic information.

which is the phenomenon of fitting DNA into dense compact forms (Figure 7). During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, and folded so that they fit easily ...

Strand slippage can also lead to deletion mutations. A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the ...

The enormously long genomic DNA molecules in eukaryotic organisms ... from chromosomes prepared in metaphase ionic conditions ...

1,2 For Michele Lai from the University of Pisa, these studies raised an important question: what happens to the excised DNA? He set out to answer this question, and recently published in the Journal ...