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Edexcel IGCSE Biology
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    Monohybrid Inheritance

     

    Monohybrid inheritance is like looking at one specific trait passed down from parents to kids. Imagine a gene as a set of instructions for a certain feature, like eye colour or flower colour. Genes have different versions called alleles. Some alleles are stronger (dominant), and some are weaker (recessive). 

     

    In a monohybrid cross, it is studied how these alleles are passed on. For example, if a mother gives a strong allele for brown eyes (dominant), and father gives a weak allele for blue eyes (recessive), your eyes will be brown because the strong one wins. This is like a game where one team (allele) is stronger than the other. 

     

    Scientists use Punnett squares to figure out the possibilities. Mendel, a scientist, figured out important rules for this, like how alleles separate when making egg or sperm cells. So, monohybrid inheritance helps us understand how one gene decides one trait, like flower colour in plants or eye colour or height in humans.

     

    Monohybrid inheritance refers to the inheritance of a single gene trait from one generation to the next. This type of inheritance involves the study of the variation of a single characteristic or trait, typically controlled by one gene. The term “mono” indicates that only one gene is being considered.

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