The dna sequence of each sperm is actually unique, and are thus not considered part of your body according to your immune system. This is why your testes are "immune-privileged", meaning your white blood cells are not allowed in there.
This is why your testes are āimmune-privilegedā, meaning your white blood cells are not allowed in there.
crazy. yeah it makes sense on second thought, i guess, like there's some fuckery with the immune system of the mother not entering a child in the womb or sth. yeah it makes sense that that applies for sperm too. then, i wonder, what keeps infections at bay?
The data would compress well, true. However, the DNA in the cell doesn't have anything like data compression, and it makes the calculations more complex, so it's only fair to compare uncompressed sizes.
The full genome is 3.1 billion base pairs (6.2 Gbit = 775 MByte). Each parent (i.e., one egg or one sperm) contributes half of that, 1.55 billion base pairs (3.1 Gbit = 388 MByte).
If you assume an average ejaculation distance of 9 inches and a nominal speed of 15 mph (this is apparently surprisingly well studied) - you get a data transfer rate of 46,500 TB/s.
I once joked I could jizz faster than my shitty internet connection. Guess I was right
"We've been swimming for ages. How long until the egg yet?"
The other replies:
"The egg!? Oh. It's not for miles yet. We've only just passed the tonsils."
Edit:
This calculation is off by an order of magnitude.
The human genome has about 3.1 billion base pairs. Each sperm has half of that. Ignoring epigenetics, each base pair has four options (A/T/C/G), so it can be represented by two bits each.
All told, thatās 3.1 gigabits = 388 megabytes per gamete.
Oh, in that case then, I guess that's a 776mb joke.
Each DNA base can be represented in 4 bits because there's only 4 values: A, T, G or C. (This is a simplification because of epigenetic base modifications, but works for now). So just take the length of DNA and multiply by 4 for the amount of bits the data represents. You do have to add up the lengths of all the chromosomes considering that sperm only have one copy of each chromosome, not two. Also factor in that there is no mitochondria in sperm. Lastly, about half of the sperm will be carrying an X and half will be carrying a Y chromosome so just take the length of the (X + Y) / 2 for the sex chromosome. Now just multiply by the amount of sperm in an average ejaculation and you'll get a good estimate.
Not that much information, but a lot of redundancy. Every sperm carries the same X or Y-Chromosome. So every sperm contains the same information as half of the other sperm. Or did I miss something?
49 Comments
Diplomjodler3@lemmy.world · 51 pts · 276d
It's just a lot of copies of the same information. Not very efficient.
Dadifer@lemmy.world · 39 pts · 276d
The dna sequence of each sperm is actually unique, and are thus not considered part of your body according to your immune system. This is why your testes are "immune-privileged", meaning your white blood cells are not allowed in there.
Diplomjodler3@lemmy.world · 40 pts · 276d
So not just inefficient but also insecure? Who designed this crap?
Dadifer@lemmy.world · 23 pts · 276d
Sexual reproduction is designed for variation. You can reduce it with a large amount of inbreeding. Your family, for example.
jk
Diplomjodler3@lemmy.world · 24 pts · 276d
My mom, my dad, my aunt and my uncle are going to beat you up! The two of them are really strong!
Dadifer@lemmy.world · 7 pts · 276d
š
gandalf_der_12te@discuss.tchncs.de · 2 pts · 276d
crazy. yeah it makes sense on second thought, i guess, like there's some fuckery with the immune system of the mother not entering a child in the womb or sth. yeah it makes sense that that applies for sperm too. then, i wonder, what keeps infections at bay?
Dadifer@lemmy.world · 1 pts · 276d
I'm not sure. I'll have to look it up
slothrop@lemmy.ca · 27 pts · 276d
They're just trying to get a point across.
30p87@feddit.org · 11 pts · 276d
Top Redundancy
dual_sport_dork@lemmy.world · 5 pts · 276d
It's not even. The data integrity algorithm is really kind of crap.
EvilFonzy@lemmy.world · 47 pts · 276d
That's why I always call it a packet storm. "Girl, I'm about to DDOS that booty."
ooterness@lemmy.world · 40 pts · 276d
This calculation is off by an order of magnitude.
The human genome has about 3.1 billion base pairs. Each sperm has half of that. Ignoring epigenetics, each base pair has four options (A/T/C/G), so it can be represented by two bits each.
All told, that's 3.1 gigabits = 388 megabytes per gamete.
dharmacurious@slrpnk.net · 11 pts · 276d
So what would the total amount of information in an average ejaculation be? Dumb it down for me, please? Lol
hydroxycotton@lemmy.dbzer0.com · 12 pts · 276d
97,000 TB
dharmacurious@slrpnk.net · 2 pts · 276d
... JesĆŗs Cristo
LSNLDN@slrpnk.net · 8 pts · 276d
Surely after some lossless compression this could be improved drastically
ooterness@lemmy.world · 3 pts · 276d
The data would compress well, true. However, the DNA in the cell doesn't have anything like data compression, and it makes the calculations more complex, so it's only fair to compare uncompressed sizes.
io@piefed.blahaj.zone · 2 pts · 276d
am i dumb or shouldn't it be 2 times 3.1 billion bits, so 6.2 gigabits according to what you said
ooterness@lemmy.world · 4 pts · 276d
The full genome is 3.1 billion base pairs (6.2 Gbit = 775 MByte). Each parent (i.e., one egg or one sperm) contributes half of that, 1.55 billion base pairs (3.1 Gbit = 388 MByte).
Track_Shovel@slrpnk.net · 26 pts · 276d
If you assume an average ejaculation distance of 9 inches and a nominal speed of 15 mph (this is apparently surprisingly well studied) - you get a data transfer rate of 46,500 TB/s.
I once joked I could jizz faster than my shitty internet connection. Guess I was right
Digit@lemmy.wtf · 9 pts · 276d
Here's a 75mb joke:
There were 2 sperm, swimming along.
One says to the other one:
"We've been swimming for ages. How long until the egg yet?"
The other replies:
"The egg!? Oh. It's not for miles yet. We've only just passed the tonsils."
Edit:
Oh, in that case then, I guess that's a 776mb joke.
Kolanaki@pawb.social · 4 pts · 276d
"Egg? We're inside a raccoon's anus."
ekZepp@lemmy.world · 8 pts · 276d
Down load.
SonicBlue03@sh.itjust.works · 7 pts · 276d
This is why a big...hard...drive is important.
kibiz0r@midwest.social · 4 pts · 276d
More buffer for the
git pushināDigit@lemmy.wtf · 1 pts · 276d
Doing a backup of some of my 18TB hard drive today.
This thread gets me thinking about that in new terms.
Not even enough space left on it for a tenth of a load.
And I thought 18TB was big when I bought it.
HowAbt2day@futurology.today · 5 pts · 276d
Crazy to imagine that some Tylenol can corrupt so much data.
grue@lemmy.world · 4 pts · 276d
Yep, literally crazy.
faizalr@piefed.social · 4 pts · 276d
How do they calculate that?
albbi@piefed.ca · 5 pts · 276d
Each DNA base can be represented in 4 bits because there's only 4 values: A, T, G or C. (This is a simplification because of epigenetic base modifications, but works for now). So just take the length of DNA and multiply by 4 for the amount of bits the data represents. You do have to add up the lengths of all the chromosomes considering that sperm only have one copy of each chromosome, not two. Also factor in that there is no mitochondria in sperm. Lastly, about half of the sperm will be carrying an X and half will be carrying a Y chromosome so just take the length of the (X + Y) / 2 for the sex chromosome. Now just multiply by the amount of sperm in an average ejaculation and you'll get a good estimate.
ooterness@lemmy.world · 10 pts · 276d
Each base-pair requires two bits, not four. Picking an arbitrary convention: 00 = A, 01 = T, 10 = G, 11 = C.
kibiz0r@midwest.social · 6 pts · 276d
To represent 4 values, you only need 2 bits
0ops@piefed.zip · 4 pts · 276d
How do they ejaculate that?
Tabula_stercore@lemmy.world · 5 pts · 276d
Morse code
Digit@lemmy.wtf · 1 pts · 276d
There are websites to help with that.
Formfiller@lemmy.world · 3 pts · 276d
Trump enters the chat
salacious_coaster@infosec.pub · 8 pts · 276d
Does he have to? In every single thread?
Formfiller@lemmy.world · 2 pts · 276d
Sorry but heās got a thirst
Digit@lemmy.wtf · 2 pts · 276d
I don't wanna think about where his sperm has been.
Formfiller@lemmy.world · 0 pts · 276d
Oh I was thinking about bubbas sperm in his mouth. His has been in children and he should be in prison for that
muusemuuse@sh.itjust.works · 3 pts · 276d
So if I jerk off, I could use that to store porn, thus making me jerk off more, thus providing more porn storageā¦
db2@lemmy.world · 1 pts · 276d
Wouldn't quaternary storage need a different naming scheme?
Imadethis@lemmynsfw.com · 1 pts · 276d
Wow, I didn't know I was better than a pigeon at transmitting information across long distances.
I'm here for your large data transfer needs, business fellows!
huppakee@piefed.social · 5 pts · 276d
Not sure what you consider a long distance, but if it travels as far as a pigeon you might want to go see a medical professional.
Kyrgizion@lemmy.world · 1 pts · 276d
Pff I'd be happy to reach a megabit at my age.
mdk@feddit.org · -1 pts · 276d
Not that much information, but a lot of redundancy. Every sperm carries the same X or Y-Chromosome. So every sperm contains the same information as half of the other sperm. Or did I miss something?
FearfulSalad@ttrpg.network · 3 pts · 276d
You missed like, a huge amount. https://en.wikipedia.org/wiki/Meiosis
mdk@feddit.org · 3 pts · 276d
Thank you, didn't know that