#meiosis

[futurebird]

None of you thought it might be important to tell me that ferns have sperm that swim???

So.

None of you thought it might be important to tell me that ferns have sperm that swim??? I just had to find all this out on my own?

And, (apparently, & no one thought to bring this up either🙄) fern plants are only one form… they have this 'other form' (tiny, ephemeral, difficult to find in the wild) alternates generations-- Fern spores don't grow into ferns! (WHAT) they grow into 'gemetophytes' (WHAT) THEN you get a fern.

Feel like I've uncovered a massive scandal.

#plants #biology #reproduction #ferns #spores #gemetophytes #sporophyte #learning #meiosis #Polypodiopsida #Polypodiophyta #vascular plants #land plants #gametes #seeds #zygote #reproductive cycle

[vadaturner]

Elite what’s the difference between meiosis and mitosis 🙁🙁🙁

It’s pretty simple actually

So yk how stuff is divided in normal/sexual?

Ofc cells have the same thing too

Somatic cells (bone,tissue,blood,etc) are the “normal” ones. They go through the regular cell division process which includes all the stages and stuff. That is called mitosis

However with gametes it’s different, because even though they go through the same process as a somatic cell, after they’re done they go through the same process again. That is called meiosis

Now, how is meiosis different? They divide to produce sex cells and not

There’s two pairs of chromosomes on the cell so they cross over (take a part from the other, trade yk) and divide the cell.

Now we have two cells with two chromosomes in each

Now, the two new cells will have to go thru the same thing again (except they don’t have to cross over and shit).

Now we’re left with four thingies, which equal either:

- 4 sperm cells

Or

- 1 egg + 3 polar bodies

(The polar bodies of don’t have any important role on this)

So in conclusion…

✪ mitosis = regular cell division

✪ meiosis = sex cell division, which has two rounds.

Im pretty sure I’m right but still consult a textbook for help

#biology #mitosis #meiosis #cell division #gametes #yes I WILL add the tags #WHO SAID EGG?? 🥚 #THESE FRAGILE EGGS WILL LIKELY CRACK

[captainsploosh]

Mermaid Meiosis

Dear Science side of Tumblr,

Are mermaids half human and half fish or are they their own separate species? Cuz if they're half human and half fish then there is a very little chance that the offspring comes out as full human/full fish. imagine two mermaids have a kid and then it's a tuna. You could have eaten a mermaid's kid and not known.

Sincerely, an idiot

#science side of tumblr #biology #mermaid #meiosis #fish #tuna

[er-cryptid]

#biology #bio #bio notes #biology notes #notes #my notes #studyblr #meiosis #meiosis notes #mitosis notes #mitosis #meiosis vs mitosis #mitosis vs meiosis #cellular reproduction #somatic cells #chromosomes #daughter cells #cell division #cellular division #cell division notes #cellular division notes #cellular reproduction notes

[pippeule]

Idk what's more impressive, that thats the first thought in my head, or that google was actually able to give me the answer

#meiosis #among us #google #funny

[scienceandtechworld]

These are the stages of cell division

#biology #biotech #medicalschool #health #science #biology is cool #biology is fun #biologystudent #biomed #cellbiology #microbiology #nanobiology #chemistry #meiosis #mitosis #cell division

[bpod-bpod]

Miscounting Chromosomes

Egg cells or oocytes have unique characteristics that make them different from other cells. One of the main differences is the number of chromosomes – condensed structures of DNA. Most human cells have 46 – 23 pairs – but eggs (and sperm) have only 23. This number is critical because any more or less can lead to infertility and miscarriages. These errors occur during meiosis; specialised cell division that generates egg cells, and these errors become more common as women age, but we didn’t know why. By imaging oocytes from younger women (left) and older women (right), researchers have found that a protein called Sgo 2 (green) is vital to helping the chromosome pairs to line up correctly before being pulled apart by microtubules (orange). In older women, Sgo2 doesn’t localise to the right locations meaning that the chromosomes are not lined up correctly for the big divide, increasing the chances of older eggs not meeting that magic number of chromosomes.

Written by Sophie Arthur

Image from work by Bettina P Mihalas and colleagues

The Wellcome Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, UK

Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)

Published in bioRxiv, January 2023 (not peer reviewed)

You can also follow BPoD on Instagram, Twitter and Facebook

#science #biomedicine #infertility #chromosomes #aneuploidy #genetic disorders #pregnancy #egg cells #meiosis #microtubules #immunofluorescence #oocytes #ivf

[economicsresearch]

page 194 - am I in one of those police dramas, a single bulb hanging over me handcuffed to a table in the interrogation room. No one is asking anything of me, questions or actions. Am I meant to be doing something to show my worth, sharing something so they know I'm peaceable and can be left alone, or just staying in the bright light's cone so I can't see what's outside? So I can't see who is outside it, who I might talk to or collaborate with.

Ever lick a mystery bear after eating a mystery fungus and hours into the trip you wonder. See lights and wonder, metaphorically.

#zoology #zoologist #diagram showing major stages in gametogenesis #meiosis #spermatogenesis #oogenesis #polar bodies #sperms #egg #chromosome #growth #multiplication #gametes #primordial #drama #police procedural #proceduralart #epiphany #realization #warrior of light #adam curtis #traumazone #electricity #bulb

[toacano]

Meiosis as conjoined twins!

#meiosis #biology #conjoined twins #oc artwork #artists on tumblr #art #mitosis #biology art #artist #queer artist #twins

[mischievous-tree]

round two of quill-written flash cards! i’m really getting into this now. usually i’m not a fan of making things prettier than they need to be but making these hand-written flash cards noticeably helps me remember things. maybe it’s the care you gotta put into these kinds of cards. who knows?

#studyblr #studyspiration #biology #meiosis #genes #genology #i’ve written so many of these these past few days oh my god #but they work. and it helps me bring my notes in order lol

[hammy-fan]

nono you don’t get it. the somatic cell told the sperm he wasn’t allowed in the mitosis club. funniest shit ive ever seen

#meiosis #mitosis #sperm #somatic cells

[vineetakamal]

#anthropology #biology #physical anthropology #biological anthropology #cell #cell division #mitosis #meiosis #blog post #blog #blogger #blogging #blogging community #blog website

[captainsploosh]

Mermaid Meiosis Pt 2

How do mermaids have kids??? Do they make eggs like fish or are they like mammals and they just birth the baby? If they make eggs then is mermaid caviar technically a thing? If they do birth it then where is it coming out of? And do they make breast milk? With that side note, are the seashells or mermaid breasts a part of them or???

Sincerely, an idiot

#science side of tumblr #mermaid #baby #meiosis #milk #sea shells

[er-cryptid]

Meiosis 1

ko-fi

#medblr #studyblr #notes #my notes #anatomy and physiology #meiosis #mitosis #cell division #reproduction #reproduction notes #scienceblr #science #science notes #meiosis 1

[leilarealistic]

#biology #cell #mitosis #meiosis #science

[kunosoura]

the gwyndolin->lady maria->Miquella/malenia continuum

#meiosis