Basic steps of genetic engineering. In step 1, a gene of interest consisting of a finite sequence of nucleotides synthesized one nucleotide at a time resulting in a double-stranded DNA linear sequence ...

Reproduction, the genome and gene expression - AQA Genetic inheritance - AQA Evolution - AQA Classification of living organisms - AQA Sample exam questions - inheritance, variation and evolution - AQA ...

and genetic engineering. Some of the significant steps leading to the current state of the art are explained below. 1. Discovery by Watson and Crick: structure of DNA, 1953: Another milestone in ...