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HomeHomework HelpbiologyLaw of Segregation

Law of Segregation

The Law of Segregation is a fundamental principle of genetics stating that during the formation of gametes, the two alleles for a trait segregate from each other, so that each gamete carries only one allele for each gene. This law, proposed by Gregor Mendel, explains how offspring inherit one allele from each parent.

intermediate
2 hours
Biology
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Overview

The Law of Segregation is a fundamental principle of genetics that explains how alleles separate during gamete formation. This process ensures that offspring inherit one allele from each parent, contributing to genetic diversity. Understanding this law is crucial for studying inheritance patterns an...

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Key Terms

Allele
A variant form of a gene.

Example: The gene for flower color can have a purple allele or a white allele.

Gamete
A reproductive cell that carries half the genetic information.

Example: Sperm and egg cells are gametes.

Meiosis
A type of cell division that reduces the chromosome number by half.

Example: Meiosis produces gametes with half the number of chromosomes.

Mendelian inheritance
Patterns of inheritance that are characteristic of organisms that reproduce sexually.

Example: Mendelian inheritance explains how traits are passed from parents to offspring.

Dominant allele
An allele that expresses its trait even in the presence of a recessive allele.

Example: In pea plants, the allele for tall stems is dominant over the allele for short stems.

Recessive allele
An allele that only expresses its trait when two copies are present.

Example: The allele for short stems in pea plants is recessive.

Related Topics

Mendelian Genetics
Study of how traits are inherited through generations based on Mendel's laws.
intermediate
Genetic Variation
Understanding the differences in DNA among individuals and its implications.
intermediate
Chromosomal Abnormalities
Exploration of genetic disorders caused by changes in chromosome number or structure.
advanced

Key Concepts

allelesgametesmeiosisgenetic variation