Molecular Biology

SNoW DRoP: Southern DNA, Northern RNA, Western Protein

A mnemonic for the three blotting techniques and what each detects.

G1, S, G2 and M, with checkpoints controlled by cyclins and p53

A memory aid for the phases of the cell cycle and their checkpoints.

DNA to RNA to protein, by replication, transcription and translation

A memory aid for the flow of genetic information.

Each pathway repairs a different kind of damage

A memory aid for the DNA repair pathways and the diseases of their failure.

Semi-conservative, bidirectional, with leading and lagging strands

A memory aid for the enzymes and features of DNA replication.

Transcriptional, post-transcriptional, translational and post-translational

A memory aid for the levels at which gene expression is controlled.

Dominant appears in every generation; recessive skips; X-linked spares father to son

A memory aid for recognising modes of inheritance from a pedigree.

Silent, missense, nonsense and frameshift, in order of severity

A memory aid for the classes of DNA mutation and their consequences.

Denature, anneal, extend, repeated in cycles

A memory aid for the steps of PCR.

Messenger carries, transfer delivers, ribosomal builds

A memory aid for the types of RNA and what each does.

Transcription in the nucleus, processing, then translation on ribosomes

A memory aid for the steps of gene expression.