Categories: All - genetics - transcription - rna - dna

by claudia kuan 13 years ago

1172

Biology Molecular Genetics

Molecular genetics focuses on the intricate details of DNA and RNA, the fundamental building blocks of life. DNA, a large and permanent molecule housed in the nucleus, is composed of a sequence of nucleotides, each consisting of a deoxyribose sugar, a phosphate group, and one of four nitrogen-containing bases:

Biology Molecular Genetics

Biology: Molecular Genetics

Transcription & Translation

Subtopic

3 bases code for 1 amino acid; codon

Ribonucleic Acid (RNA)

temporary molecule, made when it is needed
a small soluble molecule
no fixed ratio
no presence of thymine, replaced with uracil

Nucleotide

Nitrogen-containing base: Adenine - Thymine Cytosine - Guanine
Phosphate group
Deoxyribose sugar(pentose)

Deoxyribonucleic Acid (DNA)

permanent molecule in nucleus
large insoluble molecue
ratio of A:T and C:G is 1:1