The 1999 edition is a quick read, and really distills the subject down to the facts you want to know for Step I.
2006 is massive and the additions did not seem to include useful material.
Hence, although the 1999 edition is more convenient, there's no reason to pay lots of money for it -- the new edition and a highlighter should be fine.
I agree with Jeebus on this one. Based on info I got on here and from upperclassman, it would be foolish not to use this book as part of your review for Step 1. With that said, it would be even MORE foolish to pay up to $400-500 dollars for this book. Here is the table of contents for the 1st edition. Just buy the 2nd edition, which you can find anywhere online for a fair price, and just go over the pertinent sections.
High Yield Cell and Molecular Biology by Dudek, 1st edition (1999) – 128 pages (whereas the 2nd edition is 254 pages)
Table of Contents
1.
Packaging of Chromosomal DNA
I. Nucleic acids
II. The human genome
III. Chromosome
IV. Genes
V. Chromatin
2.
Chromosome Replication and DNA Synthesis
I. Introduction
II. Replication fork
III. Telomere
IV. Damage and repair of DNA
V. Clinical importance of DNA repair mechanism
3.
Genetic Recombination
I. Introduction
II. General recombination
III. Site-specific recombination
4.
Transposable Elements
I. Introduction
II. Mechanisms of transposition
III. Transposable elements and genetic variability
5.
Gene Amplification
I. Introduction
II. Clinical considerations
6.
Recombinant DNA Technology
I. Introduction
II. Restriction enzymes
III. Gel electrophoresis
IV. Enzymatic method of DNA sequencing
V. Southern blotting and prenatal testing for sickle cell anemia
VI. Isolating a human gene with DNA cloning
VII. Polymerase chain reaction (PCR)
VIII. Producing a protein from a cloned gene
IX. Site-directed mutagenesis and transgenic animals
7.
Control of Gene Expression
I. Introduction
II. Mechanism of gene regulation
III. Structure of transcription factors and gene regulatory proteins
IV. Clinical consideration: growth hormone deficiency and Pit-1 transcription factor
V. The lac operon
VI. Summary
8.
Protein Synthesis
I. Transcription
II. Converting an RNA transcript to mRNA
III. Translation
IV. Clinical considerations
9.
The Nucleolus
I. Organization of the nucleolus
II. Assembly of the ribosome
III. Ultrastructure of the nucleolus
10.
Mutations of the DNA Sequence
I. Silent mutations
II. Missense mutations
III. Nonsense mutations
IV. Frameshift mutations
V. Translocation mutations
VI. RNA splicing mutations
VII. Transposable element mutations
VIII. Trinucleotide repeat mutations
11.
Molecular Genetics
I. Polymorphisms
II. Linkage (coinheritance)
III. Population genetics
12.
Inherited Diseases
I. Autosomal dominant inheritance
II. Autosomal recessive inheritance
III. X-linked recessive inheritance
IV. Mitochondrial inheritance
V. Multifactorial inheritance
VI. Table of inherited disorders
13.
Multifactorial Inherited Diseases
I. Definition
II. Example: type 1 diabetes
14.
Proto-oncogenes, Oncogenes, and Anti-oncogenes
I. Definitions
II. Designations
III. Classification of oncogenes
IV. Mechanism of action of the ras proto-oncogene
V. Anti-oncogenes (tumor-suppressor genes)
VI. Molecular pathology of colorectal cancer
15.
The Cell Cycle
I. Phases of the cell cycle
II. Control of the cell cycle
III. Stages of the M phase
16.
Homeotic Genes and Anterior-Posterior Body Pattern Formation
I. Introduction
II. Human homeotic genes
17.
Mitochondrial Genes
I. Introduction
II. Gene products that are encoded by mitochondrial DNA (mtDNA)
III. Other mitochondrial proteins
IV. Mitochondrial diseases
18.
Molecular Immunology
I. The clonal selection theory
II. The B lymphocyte (B cell)
III. The T lymphocyte (T cell)
IV. Clinical considerations
19.
Receptors and Signal Transduction
I. Ion channel-linked receptors
II. G-protein-linked receptors
III. Enzyme-linked receptors
IV. Steroid hormone (intracellular) receptors
V. Receptor types
VI. Nitric oxide (NO)
VII. Receptor-mediated endocytosis