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maternal mRNA in development

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maternal mRNA in development

Postby zombiesagan » Mon Nov 14, 2011 11:37 pm

I am working on a study guide for my biological mechanisms class and came across this question:

In comparing the early regulation of development in bean plants and in humans, it is safe to state that:
a. maternal mRNA plays no role in the development of either
b. maternal mRNA plays major roles in both until the bean sprouts and human is born
c. maternal mRNA plays a bigger role in the bean than the human
d. maternal mRNA plays a bigger role in the human than the bean
e. no generalization about the role of maternal mRNA is possible


From what I could find on the internet, maternal mRNA seems to be pretty important during human oocyte development, regulating many different aspects of the cell. I've been having trouble finding anything about maternal mRNA in beans (or plants) though.

Our book also has nothing about in maternal mRNA in the development chapters; professor is fond of questions that do not derive from the book (they're good critical thinking questions though!). But there must be a trick to this question that I'm missing; perhaps maternal mRNA is not present or important in plant development?

Anyway information would be helpful. Thanks!
"Somewhere, something incredible is waiting to be known." -Carl Sagan
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Postby JackBean » Tue Nov 15, 2011 6:29 am

I've never heard about maternal mRNA in plants. But that doesn't mean it doesn't exist for 100% :oops:
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Re: maternal mRNA in development

Postby zombiesagan » Tue Nov 15, 2011 2:55 pm

That's probably the trick then. I couldn't find anything about maternal mRNA in plants and I've never heard of such a thing either. So he's probably expecting us to pick up on that, so the answer must be D. He writes very tricky tests but it forces you to know the material very well.
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