What does chromosome21 mean?

chromosome (noun): A linear arrangement of condensed DNA and associated proteins (such as chaperone proteins) which contains the genetic material (genome) of an organism. As a hashtag, #chromosome21 carries this topic across social platforms.

How popular is #chromosome21?

#chromosome21 has no measured public activity on the open social web in the last 7 days. It is currently wide open.

What hashtags are related to #chromosome21?

No related hashtags with measured usage were found for #chromosome21.

How much does it cost to own #chromosome21?

#chromosome21 is available as a #name from $5.00 per year. You can claim it by card at https://hashtag.org/checkout/portal-name?name=chromosome21 or with tokens on hashtag.space at https://hashtag.space/#chromosome21.

#chromosome21

Name: #chromosome21 — a #name on hashtag.org
Brand: hashtag.org
Price: 5.00 USD
Availability: InStock

Live, measured metrics for the hashtag #chromosome21 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #chromosome21

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$5.00/ year · 12-character #name

Claim #chromosome21 — $5.00/yr→Buy on hashtag.space (web3)

card via hashtag.org · tokens via hashtag.space

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Uses / 7 days

Mastodon

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Accounts / 7 days

Mastodon

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Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-08-12 16:31 UTC

No measured public usage for #chromosome21 in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-08-12 16:31 UTC

No related tags with measured usage found for #chromosome21.

Live pulse

measured · Mastodon tag timeline · fetched 2026-08-12 16:31 UTC

No recent public posts found for #chromosome21 on Mastodon. Nothing measured, so nothing shown.

What “chromosome21” means

Wiktionary · Wikipedia

chromosome/ˈkɹəʊ.məˌsəʊm/

nounA linear arrangement of condensed DNA and associated proteins (such as chaperone proteins) which contains the genetic material (genome) of an organism.

Full entry on Wiktionary →

A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins; in eukaryotic cells, the most important of these proteins are the histones. Aided by chaperone proteins, the histones bind to and condense the DNA molecule to maintain its integrity. These eukaryotic chromosomes display a complex three-dimensional structure that has a significant role in transcrip

“Chromosome” on Wikipedia (CC BY-SA) →

#chromosome21 across platforms

every network with a public tag surface

Follow #chromosome21 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/chromosome21