Unit 1455: Comprehensive Genetics

1. Introduction to Genetics

• History of Genetics
  • Gregor Mendel and the foundation of inheritance
  • Development of classical and modern genetics
• Basic Principles of Genetics
  • Mendelian inheritance: dominant and recessive traits
  • Key terms: alleles, genotype, phenotype, homozygous, heterozygous

2. DNA Structure and Replication

• Structure of DNA
  • Double helix model
  • Nucleotides: sugar, phosphate, nitrogenous bases
  • Complementary base pairing
• DNA Replication
  • Semi-conservative replication model
  • Enzymes involved: DNA polymerase, helicase, ligase
  • Significance in genetic information transmission

3. Gene Expression and Regulation

• Gene Expression Overview
  • Central dogma: DNA → RNA → Protein
• Transcription
  • RNA synthesis from DNA template
  • Role of RNA polymerase
• Translation
  • Ribosome function
  • Codons and amino acids
• Regulation of Gene Expression
  • Promoters, enhancers, silencers
  • Transcription factors
  • Epigenetic influences

4. Genetic Mutations

• Types of Mutations
  • Point mutations, insertions, deletions, frameshift
  • Chromosomal mutations
• Causes of Mutations
  • Spontaneous errors, mutagens, radiation
• Effects on Protein Structure and Function
  • Missense, nonsense, silent mutations
  • Impact on phenotype

5. Genetic Disorders

• Overview of Genetic Disorders
  • Single-gene disorders (e.g., cystic fibrosis, sickle cell anemia)
  • Chromosomal disorders (e.g., Down syndrome)
• Genetic Testing and Counseling
  • Techniques and ethical considerations
  • Role of counselors
• Treatments and Therapies
  • Current approaches
  • Emerging gene therapies

6. Molecular Techniques in Genetics

• Polymerase Chain Reaction (PCR)
  • Principles and applications
• Gel Electrophoresis
  • DNA separation and analysis
• Recombinant DNA Technology
  • Cloning and gene manipulation
  • Use in research and medicine

7. Genomics and Bioinformatics

• Genomics
  • Genome sequencing and annotation
  • Comparative genomics
• Bioinformatics Tools
  • Databases and software for genetic data analysis
  • Applications in research and personalized medicine

8. Epigenetics

• Epigenetic Modifications
  • DNA methylation, histone modification
• Role in Gene Expression
  • Regulation beyond DNA sequence
• Environmental Influences
  • Nutrition, stress, toxins
• Inheritance of Epigenetic Marks

9. Genetic Engineering and Biotechnology

• Genetic Engineering Techniques
  • CRISPR-Cas9 and gene editing
• Applications
  • Genetically Modified Organisms (GMOs)
  • Gene therapy
  • Pharmaceutical production

10. Ethical, Legal, and Social Implications of Genetics

• Ethical Considerations
  • Consent, privacy, discrimination
• Legal Issues
  • Genetic information protection laws
• Social Implications
  • Impact on society, healthcare, and policy
• Case Studies and Debates