Law of Segregation in Genetics

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  • Genetics

• Law of segregation in genetics

  • Two alleles from one gene segregate during Meiosis. One gamete only has one allele.

    • When Meiosis happens, the alleles from the Homologus Chromosomes split and end up only having one allele per gamete.

  • Dominant Traits

    • Always appear when the individual has it
    • If someone has a dominant trait. They will show it in their phenotype.
    • If someone has dominant traits, will they show in their phenotype? ;; Yes

  • Recessive Traits

    • Only appear when the individual has 2 alleles for it.

    • Only appears when someone has only thoses alleles.

    • If someone has 2 recessive trait, will they show in their phenotype? ;; No

    • If someone has 1 recessive trait, will they show in their phenotype? ;; Yes

  • How they segregate

    • Dominant gene in germ cell
    • Recessive gene in germ cell
    • Splits into 4 Gametes