first Chromosome - 1000's of genes.
- gene loci --> double helix - parallel
- double helix --> 'sugar - phospate backbone'
- in the center, group of molecules called bases
- Adenine, thymine, cytosine and guanine
- in the molecule they are holding together the two helisis
- pairing between A-T and G-C - base pairs (ALWAYS in DNA)
- order of the bases on right side A, C, T, G, A, A, C, C, A, G --> this is the gene
- Gene in the nucleus - order of the bases (ATGC)
- number of the bases
this constructs a protein in the cytoplasm - gives characteristic
Question: Why are the base pairs always arranged as A-T and G-C?
No comments:
Post a Comment