Why read this: The article rewards readers who already accept the everyday nature-versus-nurture framing by quietly dismantling it. Across eight paragraphs it walks the warrior-gene anecdote, the twin-study tradition, the genome-wide turn and the foetal-programming literature, and arrives at a synthesis (polygenic plus poly-environmental) that is more interesting than either pole. For Mandarin L1 readers at upper C1, the appeal is twofold: a chance to operate inside scientific hedging at full strength, and exposure to a dialectical argument in which the take-away depends on noticing that each successive expert revises the previous claim rather than confirming it.
What to notice: Track the caveat-then-revision spine. Each paragraph forwards a tidy claim (one gene explains aggression; twins fix heritability at 40%; trauma forges the self) before the next paragraph qualifies or replaces it. Watch how hedged modality (might be tempting, may manifest, currently leading the field, holds only weakly) signals that the writer is reporting working consensus, not settled fact. Notice too how the named experts are deployed: Okbay debunks, Roberts dispatches the trauma narrative, Instinske resists determinism, and the article's own voice synthesises across them rather than picking a winner.
Skills practised: Sustained inferential reading across a multi-paragraph dialectic; tracking who said what across five named sources; unpacking nominalised noun phrases (the mutability of the human condition, the trajectory of our lives, elevated neuroticism); reading scientific hedging as a register feature rather than vagueness; integrating two parallel technical vocabularies (genetics and personality psychology) without losing the argumentative thread; and articulating a synthesis that resists the binary frame the headline appears to invite.
"Nature, Nurture, and the Long Unravelling of the Warrior Gene"
"Twin studies once promised a clean answer; large-scale genomics has replaced it with something stranger and far more interesting."
Tap any green word in the article to see its meaning.
In 2009, an Italian court in Trieste handed Abdelmalek Bayout a nine-year sentence for stabbing a man who had mocked him in the street. Hoping for leniencyleniency: The quality of mercy or forgiveness, especially in the assignment of punishment as in a court case — 宽大, his lawyer popularised an unusual defence: his client's DNA, he claimed, carried the so-called warrior gene: a media nickname for a gene variant linked to aggressive behaviour — 战士基因, a mutation that decades of research had tied to aggressionaggression: Hostile or violent behaviour, or an unprovoked attack or invasion. — 侵犯；攻击；侵略, so the defendant could not be held fully accountableaccountable: Required or expected to justify actions or decisions; responsible. — 有责任的；应负责的；可解释的. The appeal trimmed a year off the sentence.
That courtroom moment captures the seductiveseductive: Attractive, alluring, tempting — 诱人的 simplicity of the nature or nurture: the debate over whether human traits come from genes or from environment — 先天与后天 debate, and also why scientists have spent fifteen years dismantling it. The media-friendly: easy for newspapers and TV to pick up and use — 易于媒体传播的 monikermoniker: A personal name or nickname; an informal label, often drawing attention to a particular attribute — 绰号 was coined in 2004, when one variant of the MAOA gene briefly looked like a tidy explanation for violence. As Aysu Okbay of Amsterdam UMC bluntlybluntly: In a blunt manner; without delicacy, or the usual forms of civility — 直率地；不客气地 puts it, the early assumption that behaviours were driven by a few genes with very large effects has been completely debunked. A more nuancednuanced: Having nuances; possessed of multiple layers of detail, pattern, or meaning — 细致入微的 picture has emerged, in which even traits long thought highly heritableheritable: That can legally be inherited — 可继承的, such as height, prove far harder to isolate on the genomegenome: The complete genetic information (either DNA or, in some viruses, RNA) of an organism — 基因组；基因组图谱 than early researchers anticipated.
The framing has a long pedigreepedigree: [Variation and Selection] A chart, list, or record of ancestors, to show breeding, especially distinguished breeding — 家系: the English polymathpolymath: A person with extraordinarily broad and comprehensive knowledge — 博学者 Francis Galton popularised it in 1875 using rudimentaryrudimentary: Of or relating to one or more rudiments — 基本要素的 methods for studying twins. By the 1920s researchers were comparing identical twins: twins from one fertilised egg, sharing 100% of their DNA — 同卵双胞胎, who share 100% of their DNA, with fraternal twins: twins from two separate eggs, sharing about 50% of their DNA — 异卵双胞胎, who share roughly 50%, and twin studies: research that compares twins to estimate how much of a trait comes from genes versus environment — 双胞胎研究 have remained an industry staple ever since. Psychology has converged on five broad dimensionsdimension: A measurable extent of a particular kind, such as length, breadth, or height; an aspect or feature of a situation — 维度；尺寸；方面；层面, the Big Five personality traits: the five main dimensions psychologists use to describe personality: openness, conscientiousness, extraversion, agreeableness, neuroticism — 大五人格特质: openness, conscientiousnessconscientiousness: The state or characteristic of being conscientious — 尽责性, extraversion, agreeableness and neuroticism. A 2015 meta-analysis: a study that combines results from many earlier studies — 元分析 of more than 2,500 twin studies, covering almost 18,000 traits, attributedattribute: To ascribe (something) to a given cause, reason etc — 归因于；归咎于 roughly 47% of variation in temperamenttemperament: A moderate and proportionable mixture of elements or ingredients in a compound; the condition in which elements are mixed in their proper proportions — 调和体质-related traits to genetic differences; the remainder, by inference, must reflect environmental factors.
Twin studies have always been an inexactinexact: Imperfectly conforming; exceeding or falling short in some respect — 不精确的 art, and around 2010 the field gained a sharper instrument. The human genome is unwieldyunwieldy: Lacking strength; weak — 无力的: 23 chromosomeschromosome: [Reproduction and Genetics] A linear arrangement of condensed DNA and associated proteins (such as chaperone proteins) which contains the genetic material (genome) of an organism — 染色体 house roughly 20,000 genes, subdivided into three billion base pairs: the smallest letter-pair units that make up DNA — 碱基对. Only a few million of those letters can plausiblyplausibly: (manner) In a plausible manner — 似乎可信地 account for human differences, and genome-wide association studies: studies that scan the whole genome to find DNA variants linked to traits — 全基因组关联研究 now scan millions of locations at once for DNA variant: a small difference in the DNA sequence between individuals — DNA变异 linked to particular traits. The early returns were thin, since personality is polygenicpolygenic: Controlled by the interaction of more than one gene — 多基因的, with thousands of variants each contributing a negligiblenegligible: Able to be neglected, ignored or excluded from consideration; too small or unimportant to be of concern — 微不足道的 push. Heritability estimates from this method spanspan: The space from the thumb to the end of the little finger when extended; nine inches; an eighth of a fathom — 掌宽(旧义) only 9% to 18% for the Big Five, far below the 40% inferred from twins, and that gap, christened missing heritability: the gap between heritability estimates from twin studies and from gene studies — 缺失遗传率, sits awkwardly between the two methods.
If nature contributes less than the public assumes, it might be tempting to load the slack onto nurture, the circumstances and turning points that shape a life's trajectory. Yet repeated studies show that one-off shocks (winning the lottery, marriage, even a major injury) leave only marginalmarginal: Of, relating to, or located at or near a margin or edge; also figurative usages of location and margin (edge) — 勉强维持的 traces. Childhood adversityadversity: The state of adverse conditions; state of misfortune or calamity — 逆境 is the exception, since certain kinds of early traumatrauma: a deeply distressing or disturbing experience, or physical injury — 创伤；心理创伤 predict later psychopathologypsychopathology: The study of the origin, development, diagnosis and treatment of mental and behavioural disorders — 精神病理学 and may manifestmanifest: to show or demonstrate something clearly through signs or actions — 表明；显示；表现 as elevated neuroticism, whereas adult adversity seems far less consequentialconsequential: Following as a result — 随之而来的. "Trauma doesn't make you who you are," says Brent Roberts of Illinois at Urbana-Champaign, dispatching the trauma narrative: the popular story that bad experiences make people who they are — 创伤叙事 beloved of memoirmemoir: a written account of personal experiences and memories, especially by a public figure — 回忆录；自传 and television.
The earliest environment may matter more than the chronic ones that follow. Research into foetal programming: the idea that conditions in the womb shape a baby's later traits — 胎儿编程 suggests that maternal stress transmits something measurablemeasurable: Able to be measured — 可测量的 to the baby still floating in the amniotic sack: the bag of fluid surrounding a baby in the womb — 羊膜囊. In a 2022 study, infantsinfant: a very young child, especially one not yet able to walk or talk — 婴儿；幼儿 of more anxious mothers expressed greater fear, sadness and distressdistress: Extreme anxiety, sorrow, or pain; a state of danger or urgent need. — 痛苦；忧虑；危难 at three months, with an epigeneticepigenetic: Of or relating to epigenetics — 表观遗传的 mechanism that reshapes gene expression: the way genes are switched on or off to make proteins — 基因表达 rather than the DNA itself currently leading the field.
The emerging picture is doubly mosaic: personality is not only polygenic but also "poly-environmental", with each experience, like each variant, contributing a tiny effect, so totals matter more than any single permutationpermutation: One of the ways something exists, or the ways a set of objects can be ordered — (各种)排列方式. "genetic predisposition: an inborn tendency, based on genes, to develop a certain trait — 遗传易感性 does not mean that in every environment, people behave in the same manner," says Jana Instinske of Bielefeld University; circumstances can switch given variants on or off. Recent studies flag specific genes (CRHR1 and neuroticism, for instance) and locate most Big Five associations in genes expressed in the prefrontal cortex: the front part of the brain that handles planning and decision-making — 前额叶皮质, the seat of planning.
Caveatscaveat: A warning — 警告 remain even within behavioural genetics: the scientific study of how genes influence behaviour — 行为遗传学: the warrior-gene story holds only weakly, and only alongside abusive childhood environments. What persistspersist: to continue firmly in a course of action despite difficulty or opposition — 坚持；持续；执意 is the mutabilitymutability: The quality or state of being mutable — 可变性；易变的性质或状态 of the human condition, a recognition that the knottyknotty: Full of knots — 多节的 problems of identity, and the dizzyingdizzying: Tending to make one (actually or metaphorically) dizzy or confused, as of great speed or height — 令人眼花缭乱的 permutations of code and circumstance behind them, will not yieldyield: the amount of something produced; the return on an investment — 产量；收益；收益率 to a tidy genomicgenomic: Of or pertaining to a genome — 基因组的 verdictverdict: a decision on an issue, especially the formal finding of a jury in a court of law — 裁决；判决；定论.
In 2009, an Italian court in Trieste handed Abdelmalek Bayout a nine-year sentence for stabbing a man who had mocked him in the street. Hoping for leniencyleniency: The quality of mercy or forgiveness, especially in the assignment of punishment as in a court case — 宽大, his lawyer popularised an unusual defence: his client's DNA, he claimed, carried the so-called warrior gene: a media nickname for a gene variant linked to aggressive behaviour — 战士基因, a mutation that decades of research had tied to aggressionaggression: Hostile or violent behaviour, or an unprovoked attack or invasion. — 侵犯；攻击；侵略, so the defendant could not be held fully accountableaccountable: Required or expected to justify actions or decisions; responsible. — 有责任的；应负责的；可解释的. The appeal trimmed a year off the sentence.
That courtroom moment captures the seductiveseductive: Attractive, alluring, tempting — 诱人的 simplicity of the nature or nurture: the debate over whether human traits come from genes or from environment — 先天与后天 debate, and also why scientists have spent fifteen years dismantling it. The media-friendly: easy for newspapers and TV to pick up and use — 易于媒体传播的 monikermoniker: A personal name or nickname; an informal label, often drawing attention to a particular attribute — 绰号 was coined in 2004, when one variant of the MAOA gene briefly looked like a tidy explanation for violence. As Aysu Okbay of Amsterdam UMC bluntlybluntly: In a blunt manner; without delicacy, or the usual forms of civility — 直率地；不客气地 puts it, the early assumption that behaviours were driven by a few genes with very large effects has been completely debunked. A more nuancednuanced: Having nuances; possessed of multiple layers of detail, pattern, or meaning — 细致入微的 picture has emerged, in which even traits long thought highly heritableheritable: That can legally be inherited — 可继承的, such as height, prove far harder to isolate on the genomegenome: The complete genetic information (either DNA or, in some viruses, RNA) of an organism — 基因组；基因组图谱 than early researchers anticipated.
The framing has a long pedigreepedigree: [Variation and Selection] A chart, list, or record of ancestors, to show breeding, especially distinguished breeding — 家系: the English polymathpolymath: A person with extraordinarily broad and comprehensive knowledge — 博学者 Francis Galton popularised it in 1875 using rudimentaryrudimentary: Of or relating to one or more rudiments — 基本要素的 methods for studying twins. By the 1920s researchers were comparing identical twins: twins from one fertilised egg, sharing 100% of their DNA — 同卵双胞胎, who share 100% of their DNA, with fraternal twins: twins from two separate eggs, sharing about 50% of their DNA — 异卵双胞胎, who share roughly 50%, and twin studies: research that compares twins to estimate how much of a trait comes from genes versus environment — 双胞胎研究 have remained an industry staple ever since. Psychology has converged on five broad dimensionsdimension: A measurable extent of a particular kind, such as length, breadth, or height; an aspect or feature of a situation — 维度；尺寸；方面；层面, the Big Five personality traits: the five main dimensions psychologists use to describe personality: openness, conscientiousness, extraversion, agreeableness, neuroticism — 大五人格特质: openness, conscientiousnessconscientiousness: The state or characteristic of being conscientious — 尽责性, extraversion, agreeableness and neuroticism. A 2015 meta-analysis: a study that combines results from many earlier studies — 元分析 of more than 2,500 twin studies, covering almost 18,000 traits, attributedattribute: To ascribe (something) to a given cause, reason etc — 归因于；归咎于 roughly 47% of variation in temperamenttemperament: A moderate and proportionable mixture of elements or ingredients in a compound; the condition in which elements are mixed in their proper proportions — 调和体质-related traits to genetic differences; the remainder, by inference, must reflect environmental factors.
Twin studies have always been an inexactinexact: Imperfectly conforming; exceeding or falling short in some respect — 不精确的 art, and around 2010 the field gained a sharper instrument. The human genome is unwieldyunwieldy: Lacking strength; weak — 无力的: 23 chromosomeschromosome: [Reproduction and Genetics] A linear arrangement of condensed DNA and associated proteins (such as chaperone proteins) which contains the genetic material (genome) of an organism — 染色体 house roughly 20,000 genes, subdivided into three billion base pairs: the smallest letter-pair units that make up DNA — 碱基对. Only a few million of those letters can plausiblyplausibly: (manner) In a plausible manner — 似乎可信地 account for human differences, and genome-wide association studies: studies that scan the whole genome to find DNA variants linked to traits — 全基因组关联研究 now scan millions of locations at once for DNA variant: a small difference in the DNA sequence between individuals — DNA变异 linked to particular traits. The early returns were thin, since personality is polygenicpolygenic: Controlled by the interaction of more than one gene — 多基因的, with thousands of variants each contributing a negligiblenegligible: Able to be neglected, ignored or excluded from consideration; too small or unimportant to be of concern — 微不足道的 push. Heritability estimates from this method spanspan: The space from the thumb to the end of the little finger when extended; nine inches; an eighth of a fathom — 掌宽(旧义) only 9% to 18% for the Big Five, far below the 40% inferred from twins, and that gap, christened missing heritability: the gap between heritability estimates from twin studies and from gene studies — 缺失遗传率, sits awkwardly between the two methods.
If nature contributes less than the public assumes, it might be tempting to load the slack onto nurture, the circumstances and turning points that shape a life's trajectory. Yet repeated studies show that one-off shocks (winning the lottery, marriage, even a major injury) leave only marginalmarginal: Of, relating to, or located at or near a margin or edge; also figurative usages of location and margin (edge) — 勉强维持的 traces. Childhood adversityadversity: The state of adverse conditions; state of misfortune or calamity — 逆境 is the exception, since certain kinds of early traumatrauma: a deeply distressing or disturbing experience, or physical injury — 创伤；心理创伤 predict later psychopathologypsychopathology: The study of the origin, development, diagnosis and treatment of mental and behavioural disorders — 精神病理学 and may manifestmanifest: to show or demonstrate something clearly through signs or actions — 表明；显示；表现 as elevated neuroticism, whereas adult adversity seems far less consequentialconsequential: Following as a result — 随之而来的. "Trauma doesn't make you who you are," says Brent Roberts of Illinois at Urbana-Champaign, dispatching the trauma narrative: the popular story that bad experiences make people who they are — 创伤叙事 beloved of memoirmemoir: a written account of personal experiences and memories, especially by a public figure — 回忆录；自传 and television.
The earliest environment may matter more than the chronic ones that follow. Research into foetal programming: the idea that conditions in the womb shape a baby's later traits — 胎儿编程 suggests that maternal stress transmits something measurablemeasurable: Able to be measured — 可测量的 to the baby still floating in the amniotic sack: the bag of fluid surrounding a baby in the womb — 羊膜囊. In a 2022 study, infantsinfant: a very young child, especially one not yet able to walk or talk — 婴儿；幼儿 of more anxious mothers expressed greater fear, sadness and distressdistress: Extreme anxiety, sorrow, or pain; a state of danger or urgent need. — 痛苦；忧虑；危难 at three months, with an epigeneticepigenetic: Of or relating to epigenetics — 表观遗传的 mechanism that reshapes gene expression: the way genes are switched on or off to make proteins — 基因表达 rather than the DNA itself currently leading the field.
The emerging picture is doubly mosaic: personality is not only polygenic but also "poly-environmental", with each experience, like each variant, contributing a tiny effect, so totals matter more than any single permutationpermutation: One of the ways something exists, or the ways a set of objects can be ordered — (各种)排列方式. "genetic predisposition: an inborn tendency, based on genes, to develop a certain trait — 遗传易感性 does not mean that in every environment, people behave in the same manner," says Jana Instinske of Bielefeld University; circumstances can switch given variants on or off. Recent studies flag specific genes (CRHR1 and neuroticism, for instance) and locate most Big Five associations in genes expressed in the prefrontal cortex: the front part of the brain that handles planning and decision-making — 前额叶皮质, the seat of planning.
Caveatscaveat: A warning — 警告 remain even within behavioural genetics: the scientific study of how genes influence behaviour — 行为遗传学: the warrior-gene story holds only weakly, and only alongside abusive childhood environments. What persistspersist: to continue firmly in a course of action despite difficulty or opposition — 坚持；持续；执意 is the mutabilitymutability: The quality or state of being mutable — 可变性；易变的性质或状态 of the human condition, a recognition that the knottyknotty: Full of knots — 多节的 problems of identity, and the dizzyingdizzying: Tending to make one (actually or metaphorically) dizzy or confused, as of great speed or height — 令人眼花缭乱的 permutations of code and circumstance behind them, will not yieldyield: the amount of something produced; the return on an investment — 产量；收益；收益率 to a tidy genomicgenomic: Of or pertaining to a genome — 基因组的 verdictverdict: a decision on an issue, especially the formal finding of a jury in a court of law — 裁决；判决；定论.
Questions
Check your understanding
- 01
What is the article's central reason for treating the original warrior-gene defence as no longer scientifically credible?
- 02
Why does the article describe missing heritability as sitting awkwardly between two methods?
- 03
How does the article position the popular trauma narrative against the research it surveys?
- 04
Argue whether the article's evidence supports the lawyer's original warrior-gene defence in the Bayout case.
Suggested length: ~100 words
- 05
Assess the claim that personality is shaped more by the prenatal environment than by adult life events.
Suggested length: ~100 words
Questions
Check your understanding
- 01
What is the article's central reason for treating the original warrior-gene defence as no longer scientifically credible?
- 02
Why does the article describe missing heritability as sitting awkwardly between two methods?
- 03
How does the article position the popular trauma narrative against the research it surveys?
- 04
Argue whether the article's evidence supports the lawyer's original warrior-gene defence in the Bayout case.
Suggested length: ~100 words
- 05
Assess the claim that personality is shaped more by the prenatal environment than by adult life events.
Suggested length: ~100 words