Abundant in the swamps and marshes across south Louisiana, crawfish were a favorite food of early residents. Centuries later, crawfish season in Louisiana is still exciting, with crawfish boils and backyard parties a time-honored tradition. Commercial sales of crawfish in Louisiana began in the late 1800s.
Deoxyribonucleic acid (/diËÉksiËraÉªbÉµ.njuËËkleÉª.É¨k ËaesÉªd/ ; ËÃ¦SÉªD) dna is a molecule that carries most of the genetic instructions used in the, development functioning and reproduction of all known living organisms and many. viruseshe two DNA strands are known as polynucleotides since they are composed of simpler units called nucleotides. Each nucleotide is composed of a nitrogen-containing nucleobase âeither cytosine (C), guanine (G), adenine (A), or thymine (T)âas well as a monosaccharide sugar called deoxyribose and a phosphate group.
DNA. DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. DNA is comprised of two long strands that form a spiral called a double helix. Each of the two strands of the DNA molecule is a chain of smaller molecules.he exact sequence of nucleotides on a DNA strand is the genetic code. The total genetic code for all of the DNA on all the chromosomes is the genome. Each cell in the body has exactly the same chromosomes and exactly the same genome.