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Genetics

Genetics is the study of heredity and variation, focusing on the role of chromosomes, genes, and alleles. Key processes such as meiosis, genetic variation, and inheritance patterns contribute to the diversity of traits in organisms. DNA technology has emerged as a powerful tool with applications in medicine, agriculture, and forensic science, enabling manipulation and analysis of genetic material.

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Sections

  • 3

    Genetics

    This section explores key concepts in genetics, including chromosomes, genes, alleles, and the mechanisms of genetic variation such as meiosis.

    Learning Practice

  • 3.1

    Chromosomes, Genes, And Alleles

    This section introduces chromosomes as DNA structures carrying genes, which are specific DNA sequences; alleles are variations of these genes.

    Learning Practice

  • 3.2

    Meiosis And Genetic Variation

    Meiosis is a crucial type of cell division that reduces the chromosome number by half, producing genetically diverse haploid gametes.

    Learning Practice

  • 3.3

    Mendelian Genetics: Monohybrid And Dihybrid Crosses

    This section explores Mendelian genetics, focusing on the laws of inheritance, specifically through monohybrid and dihybrid crosses.

    Learning Practice

  • 3.4

    Genetic Inheritance Patterns

    This section explores various patterns of genetic inheritance, including codominance, incomplete dominance, and sex-linked traits.

    Learning Practice

  • 3.5

    Dna Technology And Biotechnology Basics

    This section explores the fundamentals of DNA technology and biotechnology, including techniques for studying and manipulating genetic material.

    Learning Practice

  • 3.4.1

    Codominance

    Codominance describes a genetic scenario where both alleles in a heterozygous individual are fully expressed in the phenotype.

    Learning Practice

  • 3.4.2

    Incomplete Dominance

    Incomplete dominance occurs when the heterozygous phenotype is intermediate between the two homozygous phenotypes.

    Learning Practice

  • 3.4.3

    Sex Linkage

    Sex linkage refers to the inheritance patterns of genes located on sex chromosomes, primarily affecting traits linked to the X chromosome.

    Learning Practice

  • 3.4.4

    Pedigrees

    Pedigrees are diagrams that trace the inheritance of traits across generations, using standardized symbols to represent individuals and their affected status.

    Learning Practice

  • 3.5.1

    Polymerase Chain Reaction (Pcr)

    The Polymerase Chain Reaction (PCR) is a technique used to amplify specific DNA sequences, allowing for detailed genetic analysis and various applications in biotechnology.

    Learning Practice

  • 3.5.2

    Gel Electrophoresis

    Gel electrophoresis is a technique used to separate DNA fragments based on size.

    Learning Practice

  • 3.5.3

    Dna Sequencing

    DNA sequencing is a technique used to determine the exact sequence of nucleotides in DNA, which is fundamental to understanding genetic information.

    Learning Practice

  • 3.5.4

    Recombinant Dna Technology

    Recombinant DNA technology involves combining DNA from multiple sources to create new genetic combinations, with significant applications in various fields, including medicine and agriculture.

    Learning Practice

  • 3.5.5

    Gene Therapy

    Gene therapy involves the introduction or alteration of genes within a person's cells to treat diseases.

    Learning Practice

  • 3.5.6

    Genetic Engineering

    Genetic engineering involves directly manipulating an organism's genome using biotechnology, with applications in medicine, agriculture, and forensic science.

    Learning Practice

References

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Class Notes

Memorization

What we have learnt

  • Chromosomes carry genetic i...
  • Meiosis is crucial for gene...
  • Mendel's laws of inheritanc...

Final Test

Revision Tests

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