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There are two types of twins: identical or non-identical ones.

We have the first case when an egg DIVIDES itself INTO two parts, so there are two embryos WHICH share the same sac. in the second case, there are two eggs which are fertilized AT the same moment, so the embryos don't share the same sac but THEY have THEIR OWN ONE.

by the way, IT DOESN'T MATTER FOR THE SCIENTISTS IF THEY ARE SIMILAR OR NOT. The most interesting thing FOR THEM is their personality: they have the same attitudes, talents, deseases,they take the same decisions ( even if they don't know the each other' S decision).

Scientists wonder: " IT IS the result of growing up together or of having the same dna?"

There are A lot of cases that show us that this is the result of the second CHOICE.

For example THE twins JIM. One is called JIm T and the other Jim S. They have grown up in different families AND THEY WERE UNAWARE OF EACH OTHER’S EXISTENCE. Jim T discovered the truth at 5 years old, jim S at 8 y.o. but THEY FIRST MET only at 39 y.o.

There are lots of similarities: each Jim had a dog called Toy when he was a child, each of them got married with two womans: the first one WAS called Linda and the SECOND one Betty , each of them had a part-time job as sheriff and they have the same DISEASES. Even the twins Steve T and Tom P, despite HAVING grown UP in A different city ( one in philadelphia and the other one in Kansas, in two different religion environment), have lots of similarities: they do the same job as body BUILDER IN A gym.

I wouldn't like to have a twin, IT COULD be dangerous: people could considerate twins JUST LIKE a SINGLE person. ACTUALLY twins can be phisycally IDENTICAL, but THEY BEHAVE IN A DIFFERENT WAY. HOWEVER people MIGHT NOT SEE (potrebbero non vedere) thESE behavioural differences and MIGHT think (potrebbero pensare) " if they are IDENTICAL in THE physical aspect, they MUST have the same behaviour and cHaracter". IN THIS WAY, twinS' personality could be killed by wrong THOUGHTS of people, WHO CAN’T see the little differences between a twin and the other one and CAN’T do a separated idea of them. There are always differenceS because twinS ARE TWO DISTINCT PERSONS (in questo caso è giusto usare "persons" e no "people").

I couldn'T stand ( but I'm almost scared) to be considerate LIKE an another person, and not for what I really am, because I want to keep my indipendence in everything: from life to my personality because I'm unique, i'm not like another person ( although this may be like me IN THE APPEARENCE), you CAN’T say " she's like her/him" because each person HAS little differences that make him/her unique PERSON.

Non c'erano molti errori grammaticali! Ho cambiato delle parti per rendere il discorso più scorrevole, ma sono solo suggerimenti.

an egg divides itself

they have a personal one

there are two types of twins: identical or non-identical ones.

we have the first case when an egg DIVIDES itself in two parts, so there are two embryos THAT share the same sac. in the second case there are two eggs THAT are fertilized in the same moment, so the embryos don't share the same sac but THEY have a personal one.

by the way for the scentists if they are similar of if they aren't doesn't matter, for them the most interesting thing is their personality: they have the same attitudes, talents, deseases,they take the same decisions ( even if they don't know EACHOTHER'S decision).

scientists wonder: " is it the result of growing up together or of having the same dna?"

there are LOTS of cases that show us that this is the result of the second one.

for example Jim twins. one is called JIm T and the other Jim S. they have grown up in different families who believed that each other twin had died. Jim T discovered the truth at 5 years old, jim S at 8 y.o. but the first meet happened only at 39 y.o.

there are lots of similarities: each Jim had a dog called Toy when he was a child, each of them got married with two womans: the first one called Linda and the other one Betty , each of them had a part time job as sheriffs and they have the same deases. but even the twins Steve T and Tom P despite GREW UP in different CITIES ( one in philadelphia and the other one in Kansas, in two different religion environment) have lots of similarities: they do the same job as body-BUILDING gyms.

I wouldn't like to have a twin: having a twin could be dangerous: people could considerate twins like just a person, in fact twins can be equal phisycally, but in behaviour they are different, people couldn't see this behavioural differences and think " if they are egual in physical aspect they have the same behaviour and caracter" so twin personality could be killed by BAD TIHINKING of people, that could'nt see the little differences between a twin and the other one and couldn't do a separated idea of them. ( because there IS always a difference because a twin is a distinct person from ANOTHER one.)

I COULDN'T stand ( but I'm almost scared) to be considerate as an another person, and not for what I really am. because I want to keep my indipendence in everything: from life to my personality because in fact i'm unique, i'm not like another person ( although this may be like me) you couldn't say " she's like her/him" because each person have little differences that make him/her unique and a separated people,

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ci sono due tipi di gemelli: quelli identici e non identici.

abbiamo il primo caso quando l'uovo si è divisa in due parti, quindi ci sono due embrioni che condividono la sacca stessa. nel secondo caso ci sono due uova che vengono fecondate nello stesso momento, per cui gli embrioni non condividono lo stesso sacco ma l'averne uno personale.

dalla strada alla scentists se sono simili se non sono non importa, per loro la cosa più interessante è la loro personalità: hanno gli stessi atteggiamenti, talenti, malattie, prendono le stesse decisioni (anche se non si conosce il ogni altra decisione).

scienziati chiedersi: "è il risultato di crescere insieme o di avere lo stesso DNA?"

ci sono molti casi che ci dimostrano che questo è il risultato della seconda.

per esempio Jim gemelli. uno è di nome Jim T e gli altri Jim S. sono cresciuti in famiglie diverse che hanno creduto che ogni altro gemello era morto. Jim T scoperto la verità a 5 anni, jim S a 8 anni ma il primo incontro avvenuto solo a 39 y.o.

ci sono molte somiglianze: ogni Jim aveva un cane di nome Toy quando era un bambino, si sposò ciascuno di loro con due womans: il primo chiamato Linda e l'altro Betty, ognuno di loro aveva un lavoro part time come sceriffi e hanno la stessa deases. ma anche i gemelli Tom Steve T e P, nonostante le Nazioni Unite sono cresciuti in città diverse (una a Philadelphia e l'altra nel Kansas, in due ambienti religione diversa) hanno molte somiglianze: fanno lo stesso lavoro di palestre corpo edifici.

Non vorrei avere un gemello: avere un gemello può essere pericoloso: la gente potrebbe gemelli premuroso come solo una persona, infatti i gemelli possono essere uguali phisycally, ma nel comportamento sono diverse, la gente non riusciva a vedere questa differenza di comportamento e pensare "se sono in egual aspetto fisico hanno lo stesso comportamento e caracter", così doppia personalità potrebbe essere ucciso da pensare male delle persone, che non potremmo vedere le piccole differenze tra un gemello e l'altro e non poteva fare una separati idea di loro. (Perché ci sono sempre una differenza, perché un gemello è una persona distinta dalla sua uno.)

Io sto could'n (ma ho quasi paura) di essere premuroso come un'altra persona, e non per quello che realmente sono. perché voglio mantenere la mia indipendenza in tutto: dalla vita alla mia personalità perché in realtà sono uniche, io non sono come un'altra persona (anche se questo può essere come me) non si poteva dire "lei è come lei / lui" perché ogni persona ha un po 'di differenze che fanno di lui / lei un popolo unico e separato,