--- title: "Meaning & Key Takeaway of: As for the presence of large NGF [nerve…" description: "\"As for the presence of large NGF [nerve growth factor] sources in snake venom and male genital organs, they may be conceived as instances of bizarre ev..." image: "https://sms4smile.com/quotes/i/78c/rita-levi-montalcini-22012_bizarre_as-for-the-presence-of-large-ngf-nerve-g_91796.jpg" --- # As for the presence of large NGF \[nerve growth factor\]… ![“As for the presence of large NGF [nerve growth factor] sources in snake venom and male genital organs, they may be conceived as instances of bizarre evolutionary gene expression.” quote by Rita Levi-Montalcini](https://sms4smile.com/quotes/i/78c/rita-levi-montalcini-22012_bizarre_as-for-the-presence-of-large-ngf-nerve-g_91796.jpg) [Download](https://sms4smile.com/quotes/i/78c/rita-levi-montalcini-22012_bizarre_as-for-the-presence-of-large-ngf-nerve-g_91796.jpg) [Open image](https://sms4smile.com/quotes/i/78c/rita-levi-montalcini-22012_bizarre_as-for-the-presence-of-large-ngf-nerve-g_91796.jpg) > “As for the presence of large NGF \[nerve growth factor\] sources in snake venom and male genital organs, they may be conceived as instances of bizarre evolutionary gene expression.” [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The quote highlights the unexpected presence of nerve growth factor in snake venom and male reproductive tissue, suggesting these are odd evolutionary adaptations rather than functional necessities. **In simple terms:** Evolutionary oddities in gene expression. Key Takeaway Some genes appear in surprising contexts. Themes evolutionary biology gene expression venomology reproductive biology adaptation Mood curious intrigued skeptical Type scientific observation philosophical reflection When to use this quote - studying toxin evolution - comparative anatomy research - medical drug discovery - evolutionary education - public science communication Key Concepts NGF snake venom male genital organs gene regulation Practical Applications - identifying novel therapeutic targets - teaching evolutionary mechanisms Questions to Reflect On - Why might a protein serve unrelated roles in different tissues? - What does this tell us about evolutionary experimentation? ★ ★ ★ ★ ★ No ratings yet [Bizarre](https://sms4smile.com/quotes/about/bizarre/) [Bizarre Evolutionary](https://sms4smile.com/quotes/about/bizarre-evolutionary-1138992/) [Evolution](https://sms4smile.com/quotes/about/evolution/) [Expression](https://sms4smile.com/quotes/about/expression/) [Factors](https://sms4smile.com/quotes/about/factors/) [Genes](https://sms4smile.com/quotes/about/genes/) [Growth](https://sms4smile.com/quotes/about/growth/) [Instance](https://sms4smile.com/quotes/about/instance/) [Males](https://sms4smile.com/quotes/about/males/) [May](https://sms4smile.com/quotes/about/may/) [Nerve Growth](https://sms4smile.com/quotes/about/nerve-growth-1138993/) [Nerves](https://sms4smile.com/quotes/about/nerves/) [Ngf Nerve](https://sms4smile.com/quotes/about/ngf-nerve-1138991/) [Organs](https://sms4smile.com/quotes/about/organs/) [Science](https://sms4smile.com/quotes/about/science/) [Snakes](https://sms4smile.com/quotes/about/snakes/) [Source](https://sms4smile.com/quotes/about/source/) [Sources Snake](https://sms4smile.com/quotes/about/sources-snake-1138995/) [Venom](https://sms4smile.com/quotes/about/venom/) [Venom Male](https://sms4smile.com/quotes/about/venom-male-1138994/) ## Related quotes > [I was young, but to me that was underground music. 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Her heart is working too hard now; if it…](https://sms4smile.com/quotes/the-twilight-saga-breaking-dawn/ive-seen-vampire-venom-work-miracles-but-there-are-conditions-that/) [The Twilight Saga: Breaking Dawn](https://sms4smile.com/quotes/author/the-twilight-saga-breaking-dawn/) > [Bad temper is its own scourge. Few things are more bitter than to feel bitter. A man's venom poisons himself more than his victim.](https://sms4smile.com/quotes/charles-buxton/bad-temper-is-its-own-scourge-few-things-are-more-bitter-than-to-feel/) [Charles Buxton](https://sms4smile.com/quotes/author/charles-buxton/) > [“124 was spiteful. Full of baby's venom”](https://sms4smile.com/quotes/toni-morrison/124-was-spiteful-full-of-baby-s-venom/) [Toni Morrison](https://sms4smile.com/quotes/author/toni-morrison/) > [It's all just venom to the soul and symptomatic of a larger issue: the idea of the shortcut. The result without the fight. The…](https://sms4smile.com/quotes/daniel-gillies/it-s-all-just-venom-to-the-soul-and-symptomatic-of-a-larger-issue-the/) [Daniel Gillies](https://sms4smile.com/quotes/author/daniel-gillies/) > [I am the monster in your head,And I thought youd learn by now but sience you havent yet I am the venom in your…](https://sms4smile.com/quotes/breaking-benjamin/i-am-the-monster-in-your-head-and-i-thought-youd-learn-by-now-but/) [Breaking Benjamin](https://sms4smile.com/quotes/author/breaking-benjamin/) > [Malice sucks up the greatest part of its own venom, and poisons itself.](https://sms4smile.com/quotes/michel-de-montaigne/malice-sucks-up-the-greatest-part-of-its-own-venom-and-poisons-itself/) [Michel de Montaigne](https://sms4smile.com/quotes/author/michel-de-montaigne/) > [“venom runs deep”](https://sms4smile.com/quotes/viper/venom-runs-deep/) [viper](https://sms4smile.com/quotes/author/viper/) > [People can have their opinions about everything in the world, but people's opinions end where the tip of my nose begins. Your opinions of…](https://sms4smile.com/quotes/anonymous/people-can-have-their-opinions-about-everything-in-the-world-but/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [Snakes are sometimes perceived as evil, but they are also perceived as medicine. If you look at an ambulance, there's the two snakes on…](https://sms4smile.com/quotes/nicolas-cage/snakes-are-sometimes-perceived-as-evil-but-they-are-also-perceived-as/) [Nicolas Cage](https://sms4smile.com/quotes/author/nicolas-cage/) ## More by Rita Levi-Montalcini > [It is imperfection - not perfection - that is the end result of the program written into that formidably complex engine that is the…](https://sms4smile.com/quotes/rita-levi-montalcini/it-is-imperfection-not-perfection-that-is-the-end-result-of-the/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [Babies did not attract me, and I was altogether without the maternal sense so highly developed in small and adolescent girls.](https://sms4smile.com/quotes/rita-levi-montalcini/babies-did-not-attract-me-and-i-was-altogether-without-the-maternal/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [At 100, I have a mind that is superior - thanks to experience- than when i was 20.](https://sms4smile.com/quotes/rita-levi-montalcini/at-100-i-have-a-mind-that-is-superior-thanks-to-experience-than-when/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [My life has been enriched by excellent human relations, work and interests. 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He listened,…](https://sms4smile.com/quotes/rita-levi-montalcini/i-told-mother-of-my-decision-to-study-medicine-she-encouraged-me-to/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [If I had not been discriminated against or had not suffered persecution, I would never have received the Nobel Prize.](https://sms4smile.com/quotes/rita-levi-montalcini/if-i-had-not-been-discriminated-against-or-had-not-suffered/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [After a short period spent in Brussels as a guest of a neurological institute, I returned to Turin on the verge of the invasion…](https://sms4smile.com/quotes/rita-levi-montalcini/after-a-short-period-spent-in-brussels-as-a-guest-of-a-neurological/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [You've been thinking about something without willing to for a long time...Then, all of a sudden, the problem is opened to you in a…](https://sms4smile.com/quotes/rita-levi-montalcini/you-ve-been-thinking-about-something-without-willing-to-for-a-long/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) > [I tell young people: Do not think of yourself, think of others. 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This led me to the joy of working, not any…](https://sms4smile.com/quotes/rita-levi-montalcini/i-should-thank-mussolini-for-having-declared-me-to-be-of-an-inferior/) [Rita Levi-Montalcini](https://sms4smile.com/quotes/author/rita-levi-montalcini/) [Explore all 26 Rita Levi-Montalcini quotes ](https://sms4smile.com/quotes/author/rita-levi-montalcini/) ## More Bizarre quotes > [“but 20 years from now it will be bizarre if you walk into a store and the store doesn’t know who you are.”](https://sms4smile.com/quotes/robert-scoble/but-20-years-from-now-it-will-be-bizarre-if-you-walk-into-a-store-and/) [Robert Scoble](https://sms4smile.com/quotes/author/robert-scoble/) > [My illness is one often characterized by dramatic overspending - in my case through frenzied shopping sprees, credit card abuse, excessive hoarding of unnecessary…](https://sms4smile.com/quotes/andy-behrman/my-illness-is-one-often-characterized-by-dramatic-overspending-in-my/) [Andy Behrman](https://sms4smile.com/quotes/author/andy-behrman/) > [Even the two times that I left, I never really felt like I left the band. 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