Each of these things — along with every other organism on Earth — contains the molecular instructions for life, called deoxyribonucleic acid or DNA ... chemical bonds called hydrogen bonds.

Thus, there are four different nucleotides that can be incorporated ... nucleotide forming a sugar-phosphate backbone of DNA. The hydrogen bonds between the base pairs form the double helical ...

Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between ... strand, DNA polymerase wraps itself around that strand, and it attaches new nucleotides to the exposed ...

In eukaryotic cells, chromosomes are made up of DNA. DNA can also be found in the ... either adenine and thymine is paired by two hydrogen bonds, or cytosine and guanine are paired by three ...

Two nucleotides together form a base ... because they require more energy to sunder, DNA strands are held together by delicate hydrogen bonds between the bases in a base pair.

DNA, which stands for deoxyribonucleic acid, resembles a long, spiraling ladder. It consists of just a few kinds of atoms: carbon, hydrogen ... make up a nucleotide. Nucleotides are abundant ...

DNA (or deoxyribonucleic acid as your high school teacher might say) are molecules made up of nucleotides, which are linked by covalent and hydrogen bonds in a repeating sequence. Like Lego ...

One nucleotide's sugar group will bind to another nucleotide's phosphate group, creating a strand of DNA. Base Pair A pair of nucleotides on opposite strands joined by a hydrogen bond. Adenine ...

The thymine-adenine (T-A) base pair is held together by fewer hydrogen bonds compared to the guanine ... DNA polymerase enzymes use the existing DNA strand as a template and add the complementary ...

WITHOUT them, life as we know it could not exist, yet the exact definition of the hydrogen bond – credited with keeping water liquid and giving DNA its signature helical shape – has always ...

Creeth, Gulland and Jordan concluded that the hydrogen bonds joined the bases of neighbouring nucleotides. The acid or alkali irreversibly disrupted these bonds to break down the DNA molecule into ...

It is not, they claim, as is generally believed, hydrogen bonds which bind together the two sides of the DNA structure. Instead, water is the key. The paper describing their discovery ...