How to Use X chromosome in a Sentence

X chromosome

noun
Definition of X chromosomenext
  • The absence of tusks is caused by a mutation in the X chromosome in elephants that is lethal to males, according to the study.
    — Washington Post, 22 Oct. 2021
  • Fragile X syndrome is a genetic disorder caused by a mutation in a gene that lies at the tip of the X chromosome.
    — Joel Richter, The Conversation, 26 July 2023
  • In the cells of every female human being, there are two X chromosomes and no Y. A fertilized egg that has two Xs will grow into a girl.
    — Outside Online, 31 July 2024
  • So far, no studies have proven a link among the X chromosome, immune response, and Covid-19 mortality rates.
    — Grace Huckins, Wired, 9 July 2020
  • Xist molecules work with those proteins to shut down gene expression in the second X chromosome.
    — Katie Hunt, CNN, 9 Feb. 2024
  • Male tortoiseshell cats are born with an extra X chromosome.
    — Vanessa Etienne, PEOPLE.com, 8 June 2022
  • To prevent the body from making too many of these proteins, one of the two X chromosomes in females is silenced in a process called X-chromosome inactivation.
    — Will Sullivan, Smithsonian Magazine, 5 Feb. 2024
  • The genetic analysis showed that some cells had one X chromosome and others had the usual two, known as mosaic Turner syndrome.
    — Elizabeth Rayne, Ars Technica, 15 Jan. 2024
  • These new roles came to light from efforts to understand the process of X-inactivation, wherein one of the two X chromosomes carried by females is silenced, all 1,000 or so of its genes (in humans) being turned off.
    — Philip Ball, Scientific American, 14 May 2024
  • The researchers discarded the Y chromosome and duplicated the X chromosome.
    — Meghan Bartels, Scientific American, 15 Mar. 2023
  • Adkins' doctors told her the scan revealed the fetus had excess fluid and skin edema -- signs of cystic hygroma -- and that her fetus likely had Turner syndrome -- a rare condition that results from one of the X chromosomes missing.
    — Nadine El-Bawab, ABC News, 16 Dec. 2023
  • Duplicating an X chromosome, which male cells already have, is easier than conjuring up a Y chromosome in female cells, Hayashi explained.
    — Katie Hunt, CNN, 24 Mar. 2023
  • The research states that a type of RNA produced by a woman’s X chromosomes creates proteins that could make the immune system attack itself if genetic predisposition or other factors are present.
    — Emma Hinchliffe, Fortune, 2 Feb. 2024
  • Her research has found fascinating evidence of the benefits women may derive from their second X chromosome.
    — al, 16 Nov. 2021
  • Chang’s team decided to engineer male lab mice to artificially make Xist — without silencing their only X chromosome — and see what happened.
    — TIME, 2 Feb. 2024
  • But more studies and trials are needed to hone in on how things like estrogen levels, or the X chromosome itself might intersect with Alzheimer’s and other neurodegenerative diseases that cause dementia.
    — Tree Meinch, Discover Magazine, 21 Mar. 2023
  • But on rare occasions, animals such as aphids can produce fertile male offspring that are genetically identical to their mother except for lacking a second X chromosome.
    — Corryn Wetzel, National Geographic, 25 Aug. 2020
  • This stability runner is not just named after the woman-specific double X chromosome DNA sequence, it’s actually been designed specifically for women’s feet.
    — Rozalynn S. Frazier, Travel + Leisure, 27 Feb. 2023
  • The inactivated X chromosome makes Xist, which establishes an X-inactivation center on that chromosome.
    — Diana Gitig, Ars Technica, 6 Feb. 2024
  • During his presentation, Hayashi specifically referenced only Turner syndrome, a rare condition associated with infertility in which someone’s cells contain only one X chromosome, as a potential human use case for the technique.
    — Meghan Bartels, Scientific American, 15 Mar. 2023

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'X chromosome.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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