According to The Tech Museum of Innovation, DNA is soluble in water because the sugar and phosphate molecules that make up the DNA backbone are hydrophilic. DNA bases are hydrophobic but are protected from the water by the DNA backbones of the two DNA strands.Know More
In order for a molecule to be soluble in water, it needs to be a polar molecule or have a charge. H2O is a bent molecule with the oxygen located in the middle. Oxygen is more electronegative than hydrogen, so it attracts the electrons more strongly, resulting in a partial charge difference between the oxygen and hydrogen atoms. These charge differences cause the hydrogen and oxygen of different water molecules to be transiently attracted to one another in hydrogen bonds.
Polar molecules have atoms that are able to form hydrogen bonds, typically hydroxyl (-OH) or carbonyl (C=O) groups. The DNA backbone consists of alternating ribose (sugar) and phosphate molecules. Phosphate is negatively charged, which is why DNA macromolecules are predominately negative. Ribose has multiple hydroxyl groups that are able to form hydrogen bonds with water.
Interestingly, the twist in double-stranded DNA is caused by the bases of DNA being hydrophobic while the backbones are hydrophilic. The twist compresses the bases closer together and prevents water from getting into the middle of the molecule.Learn more about Molecular Biology & DNA
DNA and RNA are somewhat similar organic molecules, both involved in the storage and transfer of genetic information. According to About.com, DNA’s primary function is to store genetic information over the long term, while RNA’s primary function is to transfer this information to the ribosomes, where proteins are made. Because they perform different functions, they have different structures, chemistry and characteristics.Full Answer >
DNA, or deoxyribonucleic acid, is genetic material that exists in nearly all living organisms, including humans. Any organism with nucleus-based cells has DNA. It is the building blocks forming an organism, and the DNA combination an organism is born with remains the same.Full Answer >
Athletic DNA is an elite membership club for tennis professionals, trainers, coaches and upcoming juniors. It sells high-performance tennis apparel that includes tops, bottoms, hoodies, warm-ups, T-shirts and accessories.Full Answer >
DNA replication is a process in which DNA is duplicated so that it can be integrated into a new cell during cell division. The process produces two identical replicas of the DNA molecule from one original DNA molecule. It occurs in every living organism on Earth, allowing parental generations to pass on genes to their offspring.Full Answer >