HowStuffWorks on MSN6 个月
Reading a Codon Chart and Identifying Amino Acids
to better understand the genetic code. This type of chart displays all the possible codons — essential components of DNA and ...
BBC5 年
Chromosomes, genes and DNA (CCEA)
DNA molecules are large and complex. They carry the genetic code that determines the characteristics of a living organism. The backbone of the DNA double helix consists of alternating phosphate ...