What are some differences between DNA and RNA?

Just wondering what some differences between DNA and RNA are? What are the relative lengths of a DNA and RNA strand?



Also, why is RNA referred to also as mRNA?



What is the template/antisense strand of DNA, and the coding/sense strand?



Thanks!What are some differences between DNA and RNA?
Differences : (Only a few i could pull off the top of my head. Lots more)

1. DNA is double stranded, RNA single stranded

2. Thiamine in DNA is replaced by Uracil in RNA

3. DNA can be replicated, but RNA is synthesized from DNA



There are 3 main types of RNA.

1. messenger RNA (mRNA)

2. ribosomal RNA (rRNA)

3. transfer RNA (tRNA)



So mRNA is not another name for RNA in general, it is a type of RNA.



In RNA synthesis, the template strand is the one on which the RNA nucleotides actually form (i.e. the RNA nucleotides are bound to DNA nucleotides on the template strand during synthesis)

The final mRNA will have bases opposite(complementary) to those in the template strand.



Whereas the opposite DNA strand (double helix, remember) is known as the 'coding strand' ( because the final mRNA has bases similar to it)



Hope I didn't confuse you too much!!

See the links for a complete understanding of RNA synthesis.
check this site for differences

http://www.usask.ca/education/coursework鈥?/a>



RNA in general is not called mRNA,there r 3 types of RNA.

In mRNA as in DNA, genetic information is encoded in the sequence of nucleotides arranged into codons Each codon encodes for a specific amino acid, except the stop codons that terminate protein synthesis. This process requires two other types of RNA: transfer RNA (tRNA) mediates recognition of the codon and provides the corresponding amino acid, while ribosomal RNA (rRNA) is the central component of the ribosome's protein manufacturing machinery.



A DNA sequence is called "sense" if its sequence is the same as that of a messenger RNA copy that is translated into protein.[17] The sequence on the opposite strand is called the "antisense" sequence.What are some differences between DNA and RNA?
Both DNA and RNA are composed of repeating units of nucleotides. Each

nucleotide consists of a sugar, a phosphate and a nucleic acid base.

The sugar in DNA is deoxyribose. The sugar in RNA is ribose, the same

as deoxyribose but with one more OH (oxygen-hydrogen atom combination

called a hydroxyl). This is the biggest difference between DNA and RNA.

Another difference is that RNA molecules can have a much greater variety

of nucleic acid bases. DNA has mostly just 4 different bases with a few

extra occasionally. The difference in these bases (between DNA and RNA)

allows RNA molecules to assume a wide variety of shapes and also many

different functions. DNA, on the other hand, serves as a set of directions

and that's about all



DNA --%26gt;TRANSCRIPTION--%26gt;mRNA---%26gt;protein



When referring to DNA transcription (protein biosynthesis), the coding strand is the DNA strand which has the same base sequence as the RNA transcript produced (although with thymine replaced by uracil). It is this strand which contains triplets, while the non-coding strand contains anti codons.


Do your own Biology Homework, damn.



Here are the differences in a nutshell:



DNA is a double helix of chromosomes that exists only in the nucleus.



RNA, however, can exist in the nucleus and cytoplasm. RNA is single stranded.



DNA contains A, T, G, %26amp; C

RNA never contains, T, and contains U in its place.



mRNA is a term for messenger RNA. It is transcribed RNA that travels through cytoplasm, carrying the codons for amino acid translation.



I don't know about lengths, because I don't have to.What are some differences between DNA and RNA?
There's a lot more than I have time to list. People may just chip away at the list by giving several each.



As a chemist, to me, the big difference is that RNA has an extra hydroxyl group (-OH group). Because of this, stands of RNA are vunerable to hydroylsis (water can break them up) whereas DNA is relatively resistant.



Not all RNA is mRNA. mRNA is just a type. There's also tRNA, and several others, I think. It's been a while.
major different.. DNA double strand, RNA single strand.. mRNA is messenger RNA.. we also got tRNA (transport) and rRNA (ribosomal)



PEACE =D
The only difference is the first letter.