Mendel's law
American-
Any of the principles first proposed by Gregor Mendel to describe the inheritance of traits passed from one generation to the next.
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◆ Mendel's first law (also called the law of segregation) states that during the formation of reproductive cells (gametes), pairs of hereditary factors (genes) for a specific trait separate so that offspring receive one factor from each parent.
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◆ Mendel's second law (also called the law of independent assortment) states that chance determines which factor for a particular trait is inherited.
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◆ Mendel's third law (also called the law of dominance) states that one of the factors for a pair of inherited traits will be dominant and the other recessive, unless both factors are recessive.
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See more at inheritance
Etymology
Origin of Mendel's law
First recorded in 1900–05
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Which cellular process underlies Mendel’s law of independent assortment?
From Textbooks ● Jun. 9, 2022
Although chromosomes sort independently into gametes during meiosis, Mendel’s law of independent assortment refers to genes, not chromosomes.
From Textbooks ● Jun. 9, 2022
This results in offspring ratios that violate Mendel’s law of independent assortment.
From Textbooks ● Jun. 9, 2022
Mendel’s law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic.
From Textbooks ● Apr. 25, 2013
Mendel's law is probably the most important known principle of inheritance.
From Parent and Child Volume III., Child Study and Training by Hall, Mosiah
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
