Difference Between DNA and mRNA: DNA vs mRNA Compared


DNA vs mRNA
 

Nucleic acids are large macromolecules found in all known forms of life. There are two types of nucleotides namely; DNA and RNA. mRNA is classified under RNA. In both DNA and mRNA, genetic information is encoded in the sequence of nucleotides, which are arranged into codons. Each codon consists of three bases and encodes for a specific amino acid with the exception of stop codon, which terminates protein synthesis process.

DNA

DNA (Deoxyribonucleic acid) molecules are the basic genetic material found in almost all the organisms (except some viruses). The main functions of these molecules are to store heredity information and control protein synthesis. DNA molecule is mainly composed of units called nucleotides, which are polymerized to form long chains called polynucleotide chains. A DNA molecule has two long polynucleotide chains, which are coiled into a double helix structure. Each nucleotide is composed of three smaller parts; a phosphate group, a deoxyribose sugar, and nitrogenous bases (adenine, thymine, cytosine, and guanine). Eukaryotes store most of their DNA inside the nucleus while prokaryotes store their DNA in the cytoplasm. In humans, DNA contains about 3 billion bases of genes and each human cell has 46 double stranded DNA.

mRNA

Messenger RNA (mRNA) is a main type of RNA found in organisms, which is formed in the nucleus as a complementary strand to DNA template by transcription. Like all other RNAs, mRNA is single stranded and composed of ribose sugar, nucloebases (adenine, cytosine, guanine and uracil), and a phosphate group. The main function of mRNA is to direct the synthesis of proteins by carrying the coding information from a DNA template to the site of protein synthesis, the ribosomes.

What is the difference between DNA and mRNA?

• mRNA molecules are synthesized from the DNA templates by transcription.

• mRNA consists of only one nucleotide chain (single stranded) while DNA consists two chains (Double stranded).

• In DNA, the sugar is deoxyribose whereas, in mRNA, the sugar is ribose.

• mRNA consists the base uracil instead of thymine in DNA.

• Unlike mRNA, DNA has double helix structure.

• DNA stores genetic information of an organism and controls the protein production, whereas mRNA directs the synthesis of proteins.

• In eukaryotes, DNA present in the nucleus. In contrast, mRNA synthesizes in the nucleus and later diffuses into the cytoplasm.

• DNA molecules are larger than mRNA molecules.

• mRNA has a short life time than DNA.

The key difference between dextrose and sucrose is that the dextrose is a monosaccharide whereas the sucrose is a disaccharide. We can divide carbohydrates into different groups such as monosaccharides, disaccharides and polysaccharides according to their chemical nature. Monosaccharides are simple sugars containing one type of sugar molecules. Glucose is a good example. Glucose occurs in two isomeric forms as the L-glucose and D-glucose. Dextrose is the common name for D-glucose. Disaccharides are simple sugars containing two types of sugar molecules. Sucrose is a common example of that. The two types of sugar molecules that it contains are glucose and fructose. CONTENTS 1. Overview and Key Difference 2. What is Dextrose 3. What is Sucrose 4. Side by Side Comparison – Dextrose vs Sucrose in Tabular Form 5. Summary What is Dextrose? Dextrose is D-glucose, and it is a monosaccharide. The name derives from its chemical nature; dextrose refers to....... READ

Clever vs Wise vs Intelligent vs Smart Clever, wise, intelligent and smart are four words in English language that all connote positive attributes about an individual (not all 4 apply to a person in general). However, there are instances when people make incorrect use of these words because of their limited knowledge of the true meanings of these words. This article will help cement the meanings and usage of these words to avoid any embarrassment because fo incorrect usage. Intelligent Intelligent is the easiest of these words and one applies the word to refer to a person having thinking and analyzing ability. We talk of intelligent appliances and also use the word artificial intelligence to refer to gadgets that have the capability to adapt to changing circumstances. If scientists talk about intelligent life on any planet like Mars, they are naturally referring to life forms that have some resemblance to.......READ

Be the first to comment

Leave a Reply

Your email address will not be published.

*