Genes

	Most of the fundamental ideas of science are essentially simple
and may as a rule be expressed in a language comprehensible
to everyone.
					-Albert Einstein

Genes are the basic building block of life. They determine things like the color of our eyes, and hair. They are made up of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. These different letters come in many, many combinations, that is what makes us unique. The different letters stand for certain chemicals that make up DNA.

Groups of three letters stand for different proteins.

		Second Position of Codon
		T	C	A	G
F i r s t P o s i t i o n	T	TTT Phe [F] TTC Phe [F] TTA Leu [L] TTG Leu [L]	TCT Ser [S] TCC Ser [S] TCA Ser [S] TCG Ser [S]	TAT Tyr [Y] TAC Tyr [Y] TAA Ter [end] TAG Ter [end]	TGT Cys [C] TGC Cys [C] TGA Ter [end] TGG Trp [W]	T C A G	T h i r d P o s i t i o n
	C	CTT Leu [L] CTC Leu [L] CTA Leu [L] CTG Leu [L]	CCT Pro [P] CCC Pro [P] CCA Pro [P] CCG Pro [P]	CAT His [H] CAC His [H] CAA Gln [Q] CAG Gln [Q]	CGT Arg [R] CGC Arg [R] CGA Arg [R] CGG Arg [R]	T C A G
	A	ATT Ile [I] ATC Ile [I] ATA Ile [I] ATG Met [M]	ACT Thr [T] ACC Thr [T] ACA Thr [T] ACG Thr [T]	AAT Asn [N] AAC Asn [N] AAA Lys [K] AAG Lys [K]	AGT Ser [S] AGC Ser [S] AGA Arg [R] AGG Arg [R]	T C A G
	G	GTT Val [V] GTC Val [V] GTA Val [V] GTG Val [V]	GCT Ala [A] GCC Ala [A] GCA Ala [A] GCG Ala [A]	GAT Asp [D] GAC Asp [D] GAA Glu [E] GAG Glu [E]	GGT Gly [G] GGC Gly [G] GGA Gly [G] GGG Gly [G]	T C A G