Mendelian

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Mendelian

Mendelian (pronunciation: men-dee-lee-uhn) refers to the principles of heredity proposed by Gregor Mendel, a 19th-century Austrian monk and scientist.

Etymology

The term "Mendelian" is derived from the name of Gregor Mendel, who is often referred to as the "father of modern genetics". His experiments with pea plants in the mid-1800s led to the discovery of the basic principles of heredity.

Definition

Mendelian genetics is a type of biological inheritance that highlights the laws proposed by Gregor Mendel in 1865 and 1866. These laws were initially controversial. However, they were rediscovered in 1900, which gave them credibility. Mendelian inheritance is characterized by the segregation and independent assortment of chromosomes during meiosis, leading to offspring with combinations of traits that differ from those found in either parent.

Related Terms

  • Genetics: The study of genes, genetic variation, and heredity in organisms.
  • Heredity: The passing on of physical or mental characteristics genetically from one generation to another.
  • Chromosome: A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
  • Gene: A unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
  • Allele: One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
  • Dominant: In genetics, a dominant allele is one that expresses itself in the phenotype, whether it is paired with a recessive allele or another dominant allele.
  • Recessive: In genetics, a recessive allele is one that can only express itself in the phenotype if it is paired with another recessive allele.

See Also

External links

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