Principles of Heredity

The principles that govern heredity were discovered by Gregor Mendel in the 1860’s.

The principles that govern heredity were discovered by Gregor Mendel in the 1860’s. These principles are principle of segregation and independent assortment. Principle of segregation is the pair of alleles for each trait that’s separate from each other during meiosis or sex cell formation process. Only one allele gets passed on from parent to offspring and it is a matter of chance on which allele gets passed on. Principle of independent assortment states that different pairs of alleles are passed onto the next generation independently from one another. As a result, inheritance of unchanged traits throughout generations is determined by “units” or “factors” also known as “genes” today. Individual inherits one gene for a particular trait from each parent. An individual may not show a particular trait, but may still pass it on to the next generation. Some traits may be more dominant than others, and may overpower another trait. A heterozygous individual may still show the dominant trait as if it was homozygous dominant because the dominant trait overpowers the recessive trait.

The principles that govern heredity were discovered by Gregor Mendel in the 1860’s. These principles are principle of segregation and independent assortment. Principle of segregation is the pair of alleles for each trait that’s separate from each other during meiosis or sex cell formation process. Only one allele gets passed on from parent to offspring and it is a matter of chance on which allele gets passed on. Principle of independent assortment states that different pairs of alleles are passed onto the next generation independently from one another. As a result, inheritance of unchanged traits throughout generations is determined by “units” or “factors” also known as “genes” today. Individual inherits one gene for a particular trait from each parent. An individual may not show a particular trait, but may still pass it on to the next generation. Some traits may be more dominant than others, and may overpower another trait. A heterozygous individual may still show the dominant trait as if it was homozygous dominant because the dominant trait overpowers the recessive trait.

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