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Definitions

X chromosome



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 team analyzed modern human DNA preserved in Neanderthals, and found an abundance on the X chromosome -- the mirror opposite of humans.

From Barron's • Feb. 26, 2026

Genomic sequencing also revealed that D. catalonica has a haploid chromosome number of four autosomes plus one X chromosome, while D. tilosensis has six autosomes and one X chromosome.

From Science Daily • Nov. 2, 2025

Researchers suspected that the mutation causing the condition was somewhere on the X chromosome, because females, which have two X chromosomes, are less affected.

From The Wall Street Journal • Oct. 6, 2025

"These ginger and black patches form because, early in development, one X chromosome in each cell is randomly switched off," explains Prof Hiroyuki Sasaki, geneticist at Kyushu University.

From BBC • May 15, 2025

Any egg fertilized by a Y-bearing sperm will become a male with white eyes because the only X chromosome that the male contains comes from his mother and is white producing.

From A Critique of the Theory of Evolution by Morgan, Thomas Hunt




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