{ "model": { "rank": 6566, "code": "thing-q202771", "model_id": "vr.tr.y-chromosome", "name": "Y chromosome", "purpose": "Let an agent explain the Y chromosome, relay its structure, the SRY gene, inheritance, ancestry uses and cross-species study from genetics sources, describe the named examples, note that sex determination is complex and sex and gender differ, and distinguish the Y chromosome from the X chromosome, autosomes, mitochondrial DNA and gender identity.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q202771/", "tier": 2, "score": 60, "payload": { "layer": "wikidata", "aliases": [ "mouse chromosome Y", "rat chromosome Y", "Neanderthal Y chromosome", "Drosophila melanogaster chromosome Y", "human Y chromosome" ], "aliasCount": 5, "merged": 5, "knownIn": 60, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q202771", "url": "https://www.wikidata.org/wiki/Q202771", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T03:08:28Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q202771", "registryId": "vr.tr.y-chromosome", "name": "Y chromosome", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q202771/", "model": { "registry_id": "vr.tr.y-chromosome", "name": "Y chromosome", "purpose": "Let an agent explain the Y chromosome, relay its structure, the SRY gene, inheritance, ancestry uses and cross-species study from genetics sources, describe the named examples, note that sex determination is complex and sex and gender differ, and distinguish the Y chromosome from the X chromosome, autosomes, mitochondrial DNA and gender identity.", "definition": "One of the two sex chromosomes in many species, which in mammals including humans is typically present in males as part of an XY pair and carries the SRY gene that triggers male development, along with genes for sperm production; it is much smaller than the X chromosome, is usually passed from father to son, and its slowly changing regions are used to trace paternal ancestry and, as the registry aliases show, is studied in other species and in ancient DNA such as the Neanderthal Y chromosome. Sex determination is more complex than a single gene, and sex and gender are distinct, a point made with care and attribution.", "what_it_is_for": "A sex chromosome involved in male development.", "affordances": [ "explain structure and the SRY gene", "relay inheritance and ancestry uses", "describe named examples", "distinguish related concepts" ], "distinguishing_features": [ "Small sex chromosome", "Carries SRY", "Paternal inheritance", "Ancestry marker" ], "appearance": "Not visible to the eye; a small chromosome seen in karyotypes.", "visual_identification": [ "Small sex chromosome carrying SRY", "Mouse, rat, Neanderthal, Drosophila and human Y chromosomes", "The X chromosome is larger; autosomes are non-sex chromosomes; mitochondrial DNA is maternally inherited; gender identity is distinct from chromosomes" ], "physical_properties": [ { "quantity": "SRY gene", "typical_range": "triggers male development", "unit": "note", "note": "in mammals" }, { "quantity": "inheritance", "typical_range": "usually father to son", "unit": "note", "note": "" }, { "quantity": "registry parent", "typical_range": "sex chromosome", "unit": "note", "note": "" } ], "families_and_kinds": [ "human Y chromosome", "Y chromosomes in other species", "ancient Y chromosomes" ], "related_models": [ { "relation": "is a kind of", "target": "sex chromosome", "why": "in registry terms" }, { "relation": "is contrasted with", "target": "X chromosome", "why": "" }, { "relation": "is contrasted with", "target": "autosome", "why": "" }, { "relation": "is contrasted with", "target": "mitochondrial DNA", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "Genetics nomenclature standards" ], "failure_modes_and_hazards": [ "Oversimplifying sex determination", "Conflating sex chromosomes and gender identity", "Overstating ancestry certainty" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What the Y chromosome is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is the Y chromosome, and how does it differ from the X chromosome, autosomes, mitochondrial DNA and gender identity?", "kind": "definition" }, { "text": "Is the question about genetics, ancestry or the distinction between sex and gender?", "kind": "boundary" } ] } ] }, { "id": "examples", "name": "Examples", "description": "Named examples.", "findings": [ { "id": "examples-finding", "name": "Examples", "description": "Examples.", "questions": [ { "text": "What are the human, other-species and Neanderthal Y chromosomes?", "kind": "definition" }, { "text": "Which entry fits the specific example?", "kind": "action" } ] } ] } ] }, { "id": "genetics", "name": "Genetics", "description": "Genetics.", "rationale": "Science.", "layers": [ { "id": "sry", "name": "SRY", "description": "The SRY gene.", "findings": [ { "id": "sry-finding", "name": "SRY", "description": "SRY.", "questions": [ { "text": "How does the SRY gene trigger male development?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "structure", "name": "Structure", "description": "Structure.", "findings": [ { "id": "structure-finding", "name": "Structure", "description": "Structure.", "questions": [ { "text": "Why is the Y chromosome small, and what does it carry?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "ancestry", "name": "Ancestry", "description": "Ancestry.", "rationale": "Attribution.", "layers": [ { "id": "paternal", "name": "Paternal", "description": "Paternal lineages.", "findings": [ { "id": "paternal-finding", "name": "Paternal", "description": "Paternal.", "questions": [ { "text": "How is the Y chromosome used to trace paternal ancestry?", "kind": "provenance" }, { "text": "Which entry fits Y-chromosomal Adam?", "kind": "action" } ] } ] }, { "id": "ancient", "name": "Ancient", "description": "Ancient DNA.", "findings": [ { "id": "ancient-finding", "name": "Ancient", "description": "Ancient.", "questions": [ { "text": "What has the Neanderthal Y chromosome revealed, as research reports?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Sex and gender.", "rationale": "Attribution.", "layers": [ { "id": "determination", "name": "Determination", "description": "Sex determination.", "findings": [ { "id": "determination-finding", "name": "Determination", "description": "Determination.", "questions": [ { "text": "Why is sex determination more complex than a single chromosome, as genetics sources describe?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] }, { "id": "gender", "name": "Gender", "description": "Sex and gender.", "findings": [ { "id": "gender-finding", "name": "Gender", "description": "Gender.", "questions": [ { "text": "Why are chromosomal sex and gender identity distinct?", "kind": "provenance" }, { "text": "Which entry fits gender identity?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "How should the complexity of sex determination be presented?", "How should Y-chromosome ancestry studies be linked?", "How should sex and gender be distinguished respectfully?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a Y chromosome, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain the Y chromosome, relay its structure, the SRY gene, inheritance, ancestry uses and cross-species study from genetics sources, describe the named examples, note that sex determination is complex and sex and gender differ, and distinguish the Y chromosome from the X chromosome, autosomes, mitochondrial DNA and gender identity.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: mouse chromosome Y, rat chromosome Y, Neanderthal Y chromosome, Drosophila melanogaster chromosome Y, human Y chromosome.", "5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 60 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a Y chromosome, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "mouse chromosome Y", "rat chromosome Y", "Neanderthal Y chromosome", "Drosophila melanogaster chromosome Y", "human Y chromosome" ] } ], "standing": "Described in 60 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one Y chromosome from another, and a Y chromosome from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a Y chromosome sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a Y chromosome from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a Y chromosome passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a Y chromosome between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a Y chromosome, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a Y chromosome is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What Y chromosome is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of Y chromosome are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is Y chromosome operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of Y chromosome and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of Y chromosome?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as Y chromosome?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a Y chromosome came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a Y chromosome and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a Y chromosome is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a Y chromosome, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a Y chromosome, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a Y chromosome is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }