Molecular mechanisms and components that control when and how genes are activated or silenced in cells.

Most popular content: Gene Expression Regulation

Understanding DNA Structure

Explore the fundamentals of DNA, chromosomes, and genes in this concise overview. Learn about the double helix structure, the significance of chromosomes, and the role of genes in coding for proteins. Ideal for students studying genetics and biology.

Biology

Higher Biology Unit 1: Key Areas 1-8 Study Notes

Study notes

Biology

Genetics: DNA & Alleles

Explore the fundamentals of genetics with this comprehensive overview of DNA structure, gene function, and the role of alleles in inheritance. This summary covers key concepts such as homologous chromosomes, dominant and recessive traits, and the processes of mitosis and meiosis. Ideal for students seeking to understand the genetic basis of traits and the molecular structure of DNA.

Biology

Protein Synthesis Overview

Explore the essential processes of protein synthesis, including transcription and translation. This study note covers the roles of mRNA, tRNA, exons, and introns, detailing how genes are expressed to form proteins. Understand the significance of start and stop codons, RNA splicing, and the formation of peptide bonds. Ideal for higher biology students studying gene expression and regulation.

Biology

Gene Regulation Mechanisms

Explore the intricate mechanisms of gene regulation, including operons, transcription factors, and mutations. This summary covers key concepts such as the lac operon, transcriptional control, and post-transcriptional modifications, essential for understanding cellular control in biology. Ideal for OCR A Level Biology students.

Biology

DNA Structure & Function

Explore the essential concepts of DNA structure, gene function, and protein synthesis in this detailed summary for AQA GCSE Biology. Understand the double helix formation, the role of nucleotides, and how mRNA facilitates protein production. Ideal for revision and exam preparation.

Biology

Genetic Mutation & Regulation

Explore the mechanisms of genetic mutations and the regulation of gene expression in this comprehensive study note. Covering key concepts such as point mutations, the Lac operon, transcription factors, and the role of homeobox genes in development, this resource is essential for A Level Biology students. Understand how mutations can affect protein structure and function, and learn about the processes that control gene activity at various levels.

Biology

DNA Structure & Function

Explore the fundamentals of DNA, including its structure as a double helix, the role of genes in coding for proteins, and the significance of the genome in understanding inherited traits and diseases. This summary covers key concepts such as hydrogen bonds, base pairs, and the importance of genetic material in cellular function.

Biology