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ploidy of endosperm

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ploidy of endosperm

Postby agent007 » Fri Apr 16, 2010 1:14 am

A pollen grain from a tetraploid plant fuses with a diploid plant. Resulting seed will have ....n endosperm?? {ex. 1n, 2n, 3n, 4n, etc.......}
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Postby JackBean » Fri Apr 16, 2010 7:36 am

IMHO 4n

I guess someone got homework, hm? :roll:
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Postby agent007 » Sat Apr 17, 2010 2:55 pm

ANS... 3n
I want the reason......
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Postby JackBean » Sat Apr 17, 2010 3:20 pm

are you sure?
http://www.biolib.cz/en/main/

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Postby agent007 » Sat Apr 24, 2010 8:58 am

Yes...... Damn sure........
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Postby JackBean » Sat Apr 24, 2010 8:59 am

and will you be so kind and share with us why, MrExpert?
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Postby agent007 » Sun Apr 25, 2010 6:19 am

Mr Bean!!!

HAD I KNOWN THE ANSWER FOR WHY, I WOULD'nt HAVE WASTED MY TIME HERE CRUMPING THINGS INTO UR MIND!!!!
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Postby JackBean » Sun Apr 25, 2010 7:51 am

First of all, do not shout to us ;) :roll:

Second, you either know the answer, than tell us why is it 3n or you do not know the answer and you should accept our answers, until they are not proven wrong.

Do you know, how does endosperm comes into being?
http://www.biolib.cz/en/main/

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Postby plasmodesmata11 » Mon Apr 26, 2010 12:37 am

i think it may be 4n... here's why
the tetraploid plant's pollen grain would then be diploid, no?
so 2n combines with the polar nuclei... 2n+n+n= 4n
normally endosperm are triploid, and i thought they always were... but apparently that's not always the case. if you haven't, look here
http://en.wikipedia.org/wiki/Endosperm
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Postby JackBean » Mon Apr 26, 2010 11:06 am

exactly, that's what I thought
http://www.biolib.cz/en/main/

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Postby agent007 » Wed Apr 28, 2010 3:06 pm

Even I thought that....
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Re:

Postby JackBean » Wed Apr 28, 2010 3:20 pm

agent007 wrote:ANS... 3n
I want the reason......


You wrote something else and when we asked why, you came pissed out :roll:
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