nondisjunction
Americannoun
noun
Etymology
Origin of nondisjunction
First recorded in 1910–15; non- + disjunction
Vocabulary lists containing nondisjunction
Genetics - Middle School
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Genetics - High School
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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.
The M checkpoint ensures the proper duplication of DNA and if it fails, the cells may undergo nondisjunction of chromosomes.
From Textbooks • Jun. 9, 2022
They are caused by nondisjunction, which occurs when pairs of homologous chromosomes or sister chromatids fail to separate during meiosis.
From Textbooks • Jun. 9, 2022
Cells are more likely to make mistakes as we age due to an increase in the nondisjunction of cells during cell division, which is the reason for the occurrence of Down syndrome.
From Textbooks • Jun. 9, 2022
Because they force chromosomes to assume unnatural topologies during meiosis, inversions and translocations are often associated with reduced fertility because of the likelihood of nondisjunction.
From Textbooks • Jun. 9, 2022
With the help the diagram given, choose the most appropriate statement describing nondisjunction and its genetic consequences.
From Textbooks • Jun. 9, 2022
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.
