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Nucellus

nucellus

(Science: botany) See nucleus.

Origin: NL, dim. Of nux, nucis, a nut.


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Re: Can someone please explain to me about megaspores?

http://en.wikipedia.org/wiki/Ovule#Nucellus.2C_megaspore_and_perisperm This should explain it pretty well

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by AstusAleator
Thu Jun 04, 2009 4:18 am
 
Forum: Botany Discussion
Topic: Can someone please explain to me about megaspores?
Replies: 4
Views: 3588

Homosporous and Heterosporous plants.....help! + generations

... are homosporous however sexually are different. Ans. 3. Microsporangium = pollen sac, microgametophyte = pollen grain, mega(macro-)sporangium = nucellus, macrogametophyte = embryo sac

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by SU_reptile
Wed Nov 01, 2006 8:43 pm
 
Forum: Botany Discussion
Topic: Homosporous and Heterosporous plants.....help! + generations
Replies: 5
Views: 16600

Seed Plants

... # of chromosomes would be 40 *pollen is haploid so the# of chromosome would be 20 * i believe the megasporocyte is diploid, but i am not sure.. *nucellus is diploid tissue so the # of chromosomes would be 40 I'm still lost on the first question, can anyone help me out. 1. What similarities do ...

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by undisclothesed
Tue Apr 25, 2006 2:45 am
 
Forum: Botany Discussion
Topic: Seed Plants
Replies: 9
Views: 6132

Seed Plants

... two. can someone correct me if i'm wrong for my 3rd question: embryo- 40 chromosomes pollen nucleus- 20 chromosomes megasporocyte- 40 chromosomes nucellus tissue- 40 chromosomes

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by undisclothesed
Mon Apr 24, 2006 4:01 pm
 
Forum: Botany Discussion
Topic: Seed Plants
Replies: 9
Views: 6132

Seed Plants

... number of chromosomes equal to 40, how many chromosomes will be found in an embryo in the seed? In a pollen nucleus? In a megasporocyte? In a nucellus tissue?

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by undisclothesed
Tue Apr 18, 2006 5:37 pm
 
Forum: Botany Discussion
Topic: Seed Plants
Replies: 9
Views: 6132
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