Part of what makes genetics so interesting is that a lot of their effects aren't visible. But some people can learn a lot about their biological inheritance by simply comparing themselves to their ancestors.

Shelby Contra, 23, is one of them. Recently, she tweeted photos of herself and her grandmother to show just how similar the two looked when they were about the same age. "Grandma's genes really hit copy n paste huh," Shelby captioned the pics.

Her tweet went viral and nearly 555K people have already liked it, leaving over 1.1K responses. Many of which are their own side-by-side images that show their uncanny cross-generational resemblance. Continue scrolling and check out some of the craziest ones!

#1

People-Shares-Copy-Paste-Genes

A friend of mine took this picture at a clinic. Rare condition from mother to daughter.

AngryBusinessman Report

#4

People-Shares-Copy-Paste-Genes

My friend's newborn baby was born with the same birthmark in her hair as her mother.

Bell_Ashley666 Report

#5

People-Shares-Copy-Paste-Genes

LarraineTeresa Report

Marlowe Fitzpatrik
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

There's still enough difference around the chin and lips, but very close indeed

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#6

People-Shares-Copy-Paste-Genes

I have a hereditary gap in my eyebrow. It’s a portrait of my great great grandfather on the left, my dad also has the gap as well. It doesn’t always show, I guess because my eyebrows are kinda unruly and curly so sometimes the gap is covered, I also sometimes fill them especially because I’ve had people ask if I shaved the gap to be “cool”.

zoeck014 Report

#7

People-Shares-Copy-Paste-Genes

My brother-in-law got a thumb from each parent.

ChewyPickle Report

stripper dream
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

Oh wow. That's half amazing and half freaky. Well done, genetic code!

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#8

People-Shares-Copy-Paste-Genes

My daughter and I have the same dimple in our foreheads.

eagleeyerattlesnake Report

#12

People-Shares-Copy-Paste-Genes

Like father like son. Love you pops.

Booksoney Report

#14

People-Shares-Copy-Paste-Genes

cvtorres12 Report

troufaki13
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

Ιn Greece we say "the father was asleep during the conception" when the child doesn't get anything from him!

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#15

People-Shares-Copy-Paste-Genes

Visual representation of genetics.

tsiuq Report

luna lovegood
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

for a second i thought they all had moustaches... anyone else?

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#18

People-Shares-Copy-Paste-Genes

elglamping Report

infinite upvote
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

Can we get this garbage idiot's racist comment deleted plz, BP?

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#20

People-Shares-Copy-Paste-Genes

lexieeWABO Report

Candace Sunlight
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

all you idiots spewing crap and mean words: shut up. just be quiet.

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#22

People-Shares-Copy-Paste-Genes

rafikiiiii Report

Benny Best
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

is anyone else confused that she said i didnt realise it until my grandpa passed and then called her grandpa a she?

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#26

People-Shares-Copy-Paste-Genes

egocorvum Report

#27

People-Shares-Copy-Paste-Genes

RegiinaaGeorgee Report

KittyComics
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

no lester or rodney here? thank god! whew!

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#29

People-Shares-Copy-Paste-Genes

adelinerines Report

Rosie Hamilton
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

The upper half of the face is similar - they have quite different jaw lines.

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#34

People-Shares-Copy-Paste-Genes

_camz Report

What?
Community Member
2 years ago Created by potrace 1.15, written by Peter Selinger 2001-2017

They both have the same nose and the same smile.

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#40

People-Shares-Copy-Paste-Genes

soph_rodriguez4 Report

Note: this post originally had 53 images. It’s been shortened to the top 40 images based on user votes.