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Home Q & A Board Biology-Related Homework Help Cell Biology
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godcandle godcandle
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Posts: 7
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10 years ago
a) The oldest known fossils contain traces of RNA molecules.
b) Some RNA molecules are important catalysts in modern cells.
c)  Single-stranded RNA molecules are linear and cannot form three-dimensional shapes.


Thanks in advance...
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barrybarry
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#1
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10 years ago
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godcandle Author
wrote...
#2
10 years ago
Thank you Barry, it was the right answer.
I am using the latest version of Campbell. (9th Edition)
wrote...
#3
10 years ago
Quote from: godcandle (10 years ago)
Thank you Barry, it was the right answer.
I am using the latest version of Campbell. (9th Edition)

Sweet Slight Smile
godcandle Author
wrote...
#4
10 years ago
Could you explain a little bit of why it is the right answer?
I have been trying to find it in the textbook, but I cannot.
Thank you very much!
wrote...
#5
10 years ago
Sure. There are many types of RNA, such as tRNA, mRNA, and siRNA. siRNA, for example, act through RNA interference in a fashion similar to miRNAs. Some miRNAs and siRNAs can cause genes they target to be methylated, thereby decreasing or increasing transcription of those genes.
godcandle Author
wrote...
#6
10 years ago
Oh yeah... those various types of RNAs... now I remember their roles in protein synthesis all the way from the DNA, not exactly but vaguely from my AP Biology class last year. Thank you again Barry! You're awesome.
wrote...
#7
10 years ago
Thanks lol I'll try to be around to answer anything else you post
godcandle Author
wrote...
#8
10 years ago
https://biology-forums.com/index.php?topic=88292.msg246069#msg246069

I got another question Frowning Face I am so sorry to bother you Barry
wrote...
#9
10 years ago
Quote from: godcandle (10 years ago)
https://biology-forums.com/index.php?topic=88292.msg246069#msg246069

I got another question Frowning Face I am so sorry to bother you Barry

Looking at it now.
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