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#1 2014-01-02 13:37:17

mathaholic
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Animal Reproduction

Can you explain more about this topic? How do you know the gender of the new animal? rolleyes


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#2 2014-01-02 18:17:46

Agnishom
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Re: Animal Reproduction

Animals is a huge category. I know about bees and mammals only.

If a bee is born of an unfertilised egg, it is male. If the egg had been fertilised before, the offspring is a female.

Mammals (at least humans) have a pair of chromosomes known as gender chromosome.
Male Configuration -> XY
Female Configuration -> XX
Now, since the female has both X's, the female gamete always carries 1 X
The probability that a randomly chosen male gamete carries a Y or an X is half. That is it can contain either an X or a Y.
If the male gamete which fertilises the female gamete is an Y, the offspring is an XY {X from mother and Y from father} and thus is a male.
If the male gamete is an X, the offspring is female (XX)

Other kinds of mammals have different mechanisms, I don't know


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#3 2014-01-02 21:16:36

mathaholic
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Re: Animal Reproduction

I don't get it


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#4 2014-01-02 21:29:43

Agnishom
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Re: Animal Reproduction

Which portion do you not get?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#5 2014-01-02 22:07:35

bobbym
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Re: Animal Reproduction

Alligators determine there gender by what part of the mud heap there are nested in.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#6 2014-01-03 15:49:12

Agnishom
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Re: Animal Reproduction

What about bankers?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#7 2014-01-03 15:51:08

bobbym
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Re: Animal Reproduction

They are [removed]. Through some sort of genetic manipualtion they now give birth in a way more like mammals.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#8 2014-01-03 15:58:15

Agnishom
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Re: Animal Reproduction

Where do you get such idea from?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#9 2014-01-03 16:06:13

bobbym
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Re: Animal Reproduction

It is not my idea. Much has been published about them. I just do a little research or ask someone who has seen one.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#10 2014-01-03 16:11:38

Agnishom
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Re: Animal Reproduction

Oh okay. I'll seek for some knowledge See you later


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#11 2014-01-03 16:23:50

bobbym
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Re: Animal Reproduction

Okay, have a good day at school.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#12 2014-01-03 20:11:42

anonimnystefy
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Re: Animal Reproduction

There are many other systems of species gender determination.

In one, the heterogametes (ZW) are female. In another,  males have a haploid and the females a diploid number of chromosomes. In a third one, one gender has only one gonosome, while the other has two!

Last edited by anonimnystefy (2014-01-03 20:12:20)


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#13 2014-01-08 20:05:48

mathaholic
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Re: Animal Reproduction

Okay. I will just know that anyways soon. Thanks for all those who make me understand a little big_smile


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#14 2014-01-09 00:33:38

Agnishom
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Re: Animal Reproduction

I will just know that anyways soon

Are you keeping a zoo or what?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#15 2014-01-19 13:48:00

mathaholic
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Re: Animal Reproduction

No, in school


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#16 2014-01-19 16:44:20

bobbym
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Re: Animal Reproduction

There are zoos there too.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#17 2014-01-19 18:11:52

Agnishom
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Re: Animal Reproduction

and they keep reptiles in the cages


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda
 

#18 2014-01-19 20:52:00

bobbym
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Re: Animal Reproduction

Some of them are in cages.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

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