Cellular & Molecular Biology, Control of Gene Expression
Last Updated: January 28, 2026 Introduction to Control of Gene Expression The controls that act on gene expression (i.e., the ability of a gene to produce a biologically active protein) are much more complex in eukaryotes than in prokaryotes. A major difference is the...
Cellular & Molecular Biology, DNA, RNA, and Protein Metabolism
Last Updated: January 16, 2026 Introduction to RNA and the Processes of Transcription Transcription is the mechanism by which a template strand of DNA is utilized by specific RNA polymerases to generate one of the five distinct classifications of RNA. These five RNA...
Diseases and Disorders, Diseases Associated with DNA Abnormalities, Trinucleotide Repeat Disorders
Last Updated: October 31, 2025 Introduction to Fragile X Syndrome Fragile X syndrome is an X-linked dominant disorder representing the most common form of inherited intellectual impairment. Fragile X syndrome occurs with a frequency of approximately 1 in 4000 males...