Thread: who was the first to have sex?

That got you looking! What I mean is at what epoch did the first eukaryote reproduce by sexual means?

I mated with the limited matter at the start of this physical universe, it's commonly referred to as the big BANG.

No serious answers?

why do you expect anyone to respond to a question that a 1-minute search on wikipedia or google will answer ?

"In the eukaryotic fossil record, sexual reproduction first appeared by 1200 million years ago in the Proterozoic Eon."

(Origin of sexual reproduction)

As far as human sex goes, it is well known that this did not begin until the 1960s.

Probably long before the first multi-cellular life.

THe French.

seriously
when the first single celled lifeform ingested another lifeform and didn't digest that lifeform but combined the dna,
Would that be considered SEX?

All bilogical life forms have a sex or gender. The first to have sex for reproduction as a good guess would have to be the first male and female.

Bacteria are bilological life forms and do have gender.

Reproducing activities imply gender.

Originally Posted by Hill Billy Holmes

Bacteria are bilological life forms and do have gender.

No, they do not.

Your book is saying something different than my book. I can try and explain facts to you. One view is like that of economics. Supply alone develops into supply with demand eventually seperating into two distinct units,supply and demand. The same is true in bilology, supply being male and demand being female. Some organisms such as bacteria have both male and female seperate on their chemical level, this is not as you are reading that unusual for early biological organisms.

Originally Posted by Hill Billy Holmes

Your book is saying something different than my book. I can try and explain facts to you. One view is like that of economics. Supply alone develops into supply with demand eventually seperating into two distinct units,supply and demand. The same is true in bilology, supply being male and demand being female. Some organisms such as bacteria have both male and female seperate on their chemical level, this is not as you are reading that unusual for early biological organisms.

Source required.

My source here is memory. And as memory it might be flawed, but from many books, I am assuming that on average not all of it is incorrect. Thank you Mr Duck for making me stop and think. Do you have any views on gender of biological organisms or gender?

Originally Posted by Hill Billy Holmes

And as memory it might be flawed

It is.

I am assuming that on average not all of it is incorrect.

Well so far you've managed to be consistently incorrect.

He's probably thinking of bacterial conjugation, F+ and F- mating types, donor cells and recipient cells, sex plili, or something.


Equating bacterial conjugation to sexual reproduction, as often happens, is something that just confuses people.

Originally Posted by Zwirko

Equating bacterial conjugation to sexual reproduction, as often happens, is something that just confuses people.

Is bacterial conjugation also not a process that makes bacterial taxonomy difficult?

Originally Posted by Hill Billy Holmes

The same is true in bilology, supply being male and demand being female. Some organisms such as bacteria have both male and female seperate on their chemical level, this is not as you are reading that unusual for early biological organisms.

Bacteria (and unicellular Eukaryota) do not have a gender, nor are they hermaphroditic (as you state).
This can be found in any biology textbook.

Originally Posted by Hill Billy Holmes

Your book is saying something different than my book.

Citation please.

As I remember Procaryot is a single cell organism? Eucaryots are the ones that group together. For reproduction and duplication it is required for an interaction of two different kinds of units even within a single cell at the chemical level and is in biology known as gender.

What good yeast can do Class.ro – Publicatie online de lux si lifestyle, revista deluxe

Originally Posted by Hill Billy Holmes

As I remember Procaryot is a single cell organism?

Yes generally. (many of colonial which is a grey area between single and multicellular)

Eucaryots are the ones that group together. For reproduction and duplication it is required for an interaction of two different kinds of units even within a single cell at the chemical level and is in biology known as gender.

And many of them don't need sexual reproduction either... budding, cloning, and self pollination is very means of reproduction plants for example. Asexual reproduction is quite common.

Originally Posted by shlunka

I mated with the limited matter at the start of this physical universe, it's commonly referred to as the big BANG.

You too? Damn....it was quite the Big BANG!! *chuckle**

Could someone please define sex. I was at first under the impression that the one with the least inhibitions had sex first. Then it went on to talk about plant reproduction.

Originally Posted by Hill Billy Holmes

Could someone please define sex.

Well a my friend. First you have a de fine wine, den you have a de fine food, then some more a de fine wine, and only then you have a de fine sex.

Originally Posted by Hill Billy Holmes

As I remember Procaryot is a single cell organism? Eucaryots are the ones that group together. For reproduction and duplication it is required for an interaction of two different kinds of units even within a single cell at the chemical level and is in biology known as gender.

Eukaryota are not necessarily multicellular. Protista form a good example.

Again, you are mistaken. Bacteria do not interact with one another (or with "two different kinds of units at the chemical level") when they reproduce asexually.
It is simple cell division, not accompanied by meiosis or by the formation and fusion of haploid cells.

Bacteria do not have a gender.

Originally Posted by Hill Billy Holmes

Could someone please define sex. I was at first under the impression that the one with the least inhibitions had sex first. Then it went on to talk about plant reproduction.

Sex - Wikipedia, the free encyclopedia

Organisms of many species are specialized into male and female varieties, each known as a sex.

(Not gender, dammit)

It's when you do that kissing stuff than take off your clothes and the man puts his penis in a woman's vagina.

That is having sex.

Making love is a different definition.

I was supprised, the girl wanted to first. She had never done it before and couldn't wait to try. Wow. Married her.

sex
n.
the sum of the structural, functional, and behavioral characteristics of organisms that are involved in reproduction marked by the union of gametes

gamete
n.
a mature male or female germ cell usually possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite gender

reproduction
n.
the process by which plants and animals give rise to offspring and which fundamentally consists of the segregation of a portion of the parental body and its subsequent growth and differentiation into a new individual

Thus, ...

sexual reproduction
n.
the process by which organisms give rise to offspring from the union of two haploid chromosome sets, one from each gender, and result in a new/unique* and complete chromosome set and, thus, a unique offspring <examples abundantly surround (and include) us, almost all organisms reproduce sexually>

*for all practical purposes

asexual reproduction
n.
the process by which organisms give rise to offspring without the union of individuals or gametes, and for all practical purposes, result in clones <examples include: yeast by budding, vegetation by various methods, and some invertebrates, reptiles and amphibians by parthenogenesis>

BTW, bacterial conjugation results in new and complete chromosome sets, but not in any new individuals, thus, it is somewhat sexual (although not exactly the union of two haploid chromosome sets) but not reproduction.

Nice information. Ok , now back to the original question, who was the first to have sex. First of all the word "first" presents a problem. There was no first person. It has always required at least two people. Adam and Eve and so on. So the answer to the question of who was first is the first people that were there.

Originally Posted by jrmonroe

sex
n.
the sum of the structural, functional, and behavioral characteristics of organisms that are involved in reproduction marked by the union of gametes

gamete
n.
a mature male or female germ cell usually possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite gender

reproduction
n.
the process by which plants and animals give rise to offspring and which fundamentally consists of the segregation of a portion of the parental body and its subsequent growth and differentiation into a new individual

Thus, ...

sexual reproduction
n.
the process by which organisms give rise to offspring from the union of two haploid chromosome sets, one from each gender, and result in a new/unique* and complete chromosome set and, thus, a unique offspring <examples abundantly surround (and include) us, almost all organisms reproduce sexually>

*for all practical purposes

asexual reproduction
n.
the process by which organisms give rise to offspring without the union of individuals or gametes, and for all practical purposes, result in clones <examples include: yeast by budding, vegetation by various methods, and some invertebrates, reptiles and amphibians by parthenogenesis>

BTW, bacterial conjugation results in new and complete chromosome sets, but not in any new individuals, thus, it is somewhat sexual (although not exactly the union of two haploid chromosome sets) but not reproduction.

You are taking all the FUN OUT OF IT!!! *glare*

Originally Posted by Hill Billy Holmes

Nice information. Ok , now back to the original question, who was the first to have sex. First of all the word "first" presents a problem. There was no first person. It has always required at least two people. Adam and Eve and so on. So the answer to the question of who was first is the first people that were there.

You know their names? Are you sure it wasn't Peter and Ruth?

Probably cave people.

A better question might be the first position ,as there were no dogs or missionaries yet.

Moved from biology for lack of science content.

The first, are always, the "Wealthy".

First to have sex was probably something like this...stunningly beautiful sexual reproduction between two protista (our distant relatives),

Tetrahymena thermophila, who only self-determine their gender when they get into the act.

Originally Posted by Lynx_Fox

First to have sex was probably something like this...stunningly beautiful sexual reproduction between two protista (our distant relatives),

Tetrahymena thermophila, who only self-determine their gender when they get into the act.

Did they smoke after? *chuckle* Great picture.

A smoke particle could interrupt their beautiful and delicate processes.