what is the difference between DNA and RNA?

Answer 1

DNA is deoxyribonucleic acid, and RNA is ribonucleic acid

as the name suggests, DNA lacks and oxygen in the structure of its backbone. also, where DNA contains thymine, RNA contains uracil.... those are the molecular differences at least. they also have different funtions

Answer 2

DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) have three distinct parts, a base (A, C, G, TorU), a 5 carbon sugar (ribose) and a phosphate -PO4, that makes up it's backbone and holds all the sugars in place. The bases are attached only to the ribose, not the phosphate.

Sooo here are the main differences:
1. On the ribose of DNA, one of the carbons has a Hydrogen (-H) instead of an -OH found on the RNA of ribose, (hence the term "deoxy").

2. DNA has Thymine, whereas RNA has Uracil. Uracil is different from Thymine in that it lacks a methyl (-CH3) group from it's ring structure and has a Hydrogen (-H) instead.

3. DNA is generally double stranded and RNA is generally single stranded.

Also you can think of DNA as the master copy and RNA is a more temporary copy.

Answer 3

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 (but that's absolutely necessary!)

Answer 4

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms and some viruses. The main role of DNA molecules is the long-term storage of information. Ribonucleic acid (RNA) is a type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate. RNA is very similar to DNA, but differs in a few important structural details: in the cell, RNA is usually single-stranded, while DNA is usually double-stranded; RNA nucleotides contain ribose while DNA contains deoxyribose (a type of ribose that lacks one oxygen atom); and RNA has the base uracil rather than thymine that is present in DNA.

Answer 5

The difference between DNA and RNA is that RNA is made up only of one strand, while DNA is made up of two twisted strands. RNA contains a nitrogen base called Uracil and DNA has thymine and sugar ribose instead. RNA is made in the nucleus on a DNA pattern.

Answer 6

RNA has ribose sugar, DNA has deoxyribose sugar (on the side/s of the molecule

DNA bases are adenine, cytosine, guanine and thymine
RNA has adenine, cytosine, guanine and URACIL (although its chemcally like thymine)

RNA is 1 strand, DNA has 2 strands that are joined together by hydrogen bonds and is twisted.

DNA is found in the nucleus of a cell. RNA can be found in the nucleus and the cytoplasm

There are at least 3 differnt types of RNA
eg tRNA (transfer RNA), mRNA (messanger RNA) and rRNA (ribosomal RNA)

Answer 7

1.23 Similarities and Differences Between DNA and RNA
Characteristic DNA RNA
1. Deoxyribonucleic acid ✔
2. Ribonucleic acid ✔
3. Ribose sugar present ✔
4. Deoxyribose sugar present ✔
5. It’s sugar is linked to a phosphate group at one end and a nitrogenous base at the other end ✔ ✔
6. Polymer of nucleotides ✔ ✔
7. Nitrogenous bases:
         Adenine (A) present ✔ ✔
     Thymine (T) present ✔
     Uracil (U) present ✔
     Cytosine (C) present ✔ ✔
     Guanine (G) present ✔ ✔
8. Two (2) double chains held in a double helix by hydrogen bonds ✔
9. Single-stranded ✔
10. Contains a chemical code or message which must be transcribed. ✔


http://www.usask.ca/education/coursework/mcvittiej/bio30unit1/overheads/1.23.htm

Answer 8

DNA and RNA are both a very important part of the evolution .DNA stands for deoxiribonuclic acid and RNA for ribo nuclic acid . DNA plays major role in determining the characters of the offspring and RNA is an important part of a cell which contains the protiens..

Answer 9

1)DNA is the genetic material for most of the organisms.
RNA is the genetic material of some viruses.
2)Usually DNA is double stranded.
Usually RNA is single stranded.
3)DNA has 5 carbon-sugar-deoxyribose.
RNA has 5 carbon sugar ribose.
4)The common bases of DNA are adenine,guanine,cytosine and thymine.
The common bases of RNA are adenine,guanine,cytosine and Uracil.
5)There is only one type of DNA.
There are 3 types of RNA (m-RNA,t-RNA,r-RNA.)
6)DNA on replication forms DNA.
RNA usually does not replicate.
7)DNA's main function is to transfer of information from parents to offspring.
RNA's main function is protein synthesis.

Answer 10

DNA is a long polymer of simple units called nucleotides, which are held together by a backbone made of sugars and phosphate groups. This backbone carries four types of molecules called bases, and it is the sequence of these four bases that encodes information.
*It is a stored form of Genetic Information
Ribonucleic acid (RNA) is a nucleic acid polymer consisting of nucleotide monomers, that acts as a messenger between DNA and ribosomes, and that is also responsible for making proteins out of amino acids.
*It is the active expression form and expression regulatory form of Genetic Information