the condition of being sound in body Granddad's heartiness on the hike put everyone else to shameâhe wouldn't even hear of stopping to rest Synonyms fitness, healthiness, health, robustness, sap, soundness, verdure, wellness, wholeness, wholesomenessRelated Words fettle, shape; cleanliness, hygiene; hardiness, lustiness, robustiousness, ruggedness, ...
Superimpose code. The genetic code by which DNA stores the genetic information consists of codons of three nucleotides. The functional segments of DNA which code for the transfer of genetic information are called genes. With four possible bases, the three nucleotides can give 4 3 = 64 different possibilities, and these combinations are used to specify the 20 different amino acids used by living organisms.
As the new nucleotides line up opposite each parent strand by hydrogen bonding, enzymes called DNA polymerases join the nucleotides by way of phosphodiester bonds. Actually, the nucleotides lining up by complementary base pairing are deoxynucleoside triphosphates, composed of a nitrogenous base, deoxyribose, and three phosphates. As the phosphodiester bond forms between the 5' phosphate group of the new nucleotide and the 3' OH of the last nucleotide in the DNA strand, two of the phosphates are removed providing energy for bonding.