#GeneticHeritage

[celestialdnagenome]

The Origin of Maternal Mitochondrial Haplogroup J: From Fertile Crescent to Modern Day

Learn about the pivotal role of Maternal Haplogroup J, which traces back to a common female ancestor in the Near East, a region also referred as the fertile crescent, and its significant contribution to early agriculture and civilization.

Explore the two subclades, J1 and J2, their geographical distribution, and how they unlock secrets of ancient human migrations and cultural exchanges. From the Fertile Crescent to ancient Greece and Rome, uncover the historical significance of these genetic markers in shaping our shared human history.

[enterprisewired]

Neanderthal DNA Linked to Early Rising in Modern Humans, Study Suggests

Ancient habits die hard, and for those who are early risers, their propensity for rising with the sun might have roots tracing back to their Neanderthal ancestors, researchers reveal.

Inherited DNA and Morning Habits

Scientists have uncovered a connection between Neanderthal DNA inherited by modern humans and the inclination of some individuals to be ‘morning people.’ While most genes from Neanderthals have been phased out by evolution, a fraction of these genes remain, impacting the body clocks of modern humans.

John Capra, an epidemiologist from the University of California, San Francisco, notes that an analysis of existing Neanderthal DNA within modern human genomes revealed a prevalent influence on genes governing body clocks, significantly favoring a propensity to rise early.

Ancient Encounters: Neanderthals and Modern Humans

Around 70,000 years ago, waves of Homo sapiens departed Africa for Eurasia, encountering Neanderthals, who had long inhabited the region. This interaction led to interbreeding, with modern humans today carrying up to 4% of Neanderthal DNA, affecting various traits like skin pigmentation, hair, fat distribution, and immunity.

Capra and colleagues examined genetic data from both Neanderthals and modern humans, identifying distinct genetic variants influencing circadian rhythms or body clocks. As modern humans interbred with Neanderthals, some individuals today carry these Neanderthal variants, influencing their tendency to rise early.

Modern Adaptations and Evolutionary Impact

The research, published in Genome Biology and Evolution, revealed that the Neanderthal genes linked to early rise weren’t the sole determinants. While numerous genes, environmental factors, and cultural influences shape sleeping patterns, Neanderthal genes have a minor impact.

Capra suggests these genes potentially aided our ancestors in adapting to life in higher latitudes, where seasonal variations in light levels required a faster clock for adaptation. This adjustment allowed for better acclimatization to the changing light patterns.

Implications of the Study

Prof Mark Maslin from University College London, not involved in the study, highlighted the genetic evidence supporting the existence of ‘morning people.’ He emphasized the significance of this genetic adaptation for early humans as they moved away from tropical Africa, where daylight hours were consistent, to regions with fluctuating light patterns, necessitating a shift in waking habits to optimize food collection.

The study underscores the intricate interplay between ancient genetics and present-day habits, shedding light on how our distant ancestors’ adaptations still echo in our daily lives.

Curious to learn more? Explore our articles on Enterprise Wired

[bbangpanmen]

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• pairing: yn x ceo!jin

• genre: romance | fantasy (i guess? cause soulmates)

ceo / soulmate / social media au

you’ve been waiting for your soulmate your entire life. you check your soulmate clock everyday to count down the days until you meet them, until one day it stops working.

prev | next

au masterlist

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surprise update!!! i wasn’t originally planning on updating this today BUT i’ve been meaning to start writing another au so i got inspired to be more active! i hope you guys like it 💜

also side note, what have you guys been doing during this whole quarantine? i’ve been on tiktok a lot 😅

some of my favorite tiktoks on my fyp today (relating to bts):

recommend me some of your favorites! have a great day/night!

[jypsyvloggin]

How to find genetic heritage filter on Instagram?

How to find genetic heritage filter on Instagram? #geneticheritage #instagramfilter

Instagram genetic heritage filter

Instagram filters are an easy and quick way to enhance your social media posts before posting. Whether it’s for fun or an occasion, you choose a filter to apply to your post based on whatever look you’re hoping to achieve. Each filter is a combination of effects. Thanks to the creators community for their great sense of humor and all the hard work they do for…

[celestialdnagenome]

Discovering My Autosomal DNA Results

Thomas's roots trace back to Europe, showcasing a rich tapestry of diverse ancestry. Dive into the specifics as we explore his Scandinavian, Central European, and Irish heritage. But the journey doesn't stop there; we also uncover connections to Eastern Europe, Greece, the Balkans, and even the Middle East.