More ideas from bente
DNA replication - 3D - YouTube More

This animation shows you how DNA is copied in a cell. It shows how both strands of the DNA helix are unzipped and copied to produce two identical DNA mole.

Chemistry of universal indicator, by @VCEasy

By definition, an indicator is a substance that changes colour in different pH environments. Universal indicator is a brown-coloured solution—containing a mixture of indicators—that can be added to…

Genetic drift; the change in allele frequency within a gene pool due to a chance event

the change in allele frequency within a gene pool due to a chance event