Dictionary » M » Messenger RNA

Messenger RNA

Definition

noun

A type of RNA that carries the code or chemical blueprint for a specific protein. In the early stages of protein synthesis, the mRNA is synthesized from a DNA template during transcription.


Supplement

The messenger RNA (mRNA) is one of the three types of RNA; the other two are transfer RNA (tRNA) and ribosomal RNA (rRNA).

In eukaryotes, the mRNA carries the genetic information from the nucleus to the site of protein synthesis (ribosome) in the cytoplasm to be translated. In non-eukaryotes such as bacteria, the mRNA is produced and translated in the cytoplasm of the bacterial cell.


Variant: mRNA

Synonyms:


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Does complementary DNA include only coding sequences ?

... everyone, I was wondering if complementary DNA is a copy of the entire messenger RNA or only a copy of the coding parts ? I'm really confused... For example, if I have the ...

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by ophelia15
Sat Oct 19, 2013 10:25 pm
 
Forum: Genetics
Topic: Does complementary DNA include only coding sequences ?
Replies: 4
Views: 1938

Explain why Genetic Code is called "Rosetta Stone" of life?

Perhaps "...codon on messenger RNA that is used to produce amino acids" vs. ... to produce proteins. mRNA does not produce amino acids.

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by JorgeLobo
Thu May 31, 2012 3:08 am
 
Forum: Genetics
Topic: Explain why Genetic Code is called "Rosetta Stone" of life?
Replies: 11
Views: 8684

Explain why Genetic Code is called "Rosetta Stone" of life?

... provides the three letter triplet code on DNA that becomes the codon on messenger RNA that is used to produce amino acids. The amino acids are linked by dehydration synthesis ...

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by baffled0s2dent
Wed May 30, 2012 11:08 pm
 
Forum: Genetics
Topic: Explain why Genetic Code is called "Rosetta Stone" of life?
Replies: 11
Views: 8684

Molecular gene (genome) concept scientifically untenable

... polypeptide, and that this process was mediated by an adaptor molecule (RNA template). In 1958 Francis Crick formulated the “sequence hypothesis” ... gene is no longer a fixed point on the chromosome, producing a single messenger RNA. Rather, most eukaryotic genes consist of split DNA sequences, ...

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by PAWahid
Wed May 02, 2012 4:54 am
 
Forum: Molecular Biology
Topic: Molecular gene (genome) concept scientifically untenable
Replies: 12
Views: 28004

Re: Yeast Mating Type Switching

... protein, Ash1p, in daughter cell nuclei. Here it is shown thatASH1 messenger RNA (mRNA) preferentially accumulates in daughter cells by a process that is dependent on actin ...

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by fiona1985
Mon Aug 15, 2011 10:30 am
 
Forum: Cell Biology
Topic: Yeast Mating Type Switching
Replies: 3
Views: 6128
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