2B Nucleic Acids Flashcards
nucleic acid
the class of macromolecule that includes DNA and RNA, all nucleic acids are polymers made out of nucleotides monomers
nucleotide
the monomer subunit of nucleic acids, made up of a nitrogen-containing base, a five-carbon sugar molecule (ribose in RNA and deoxyribose in DNA) and a phosphate group
DNA
a double-stranded nucleic acid chain made up of nucleotides, DNA carries the instructions for proteins which are required for cell organism and survival
RNA
a single-stranded nucleic acid chain made up of nucleotides, included mRNA, rRNA and tRNA
phosphodiester bond
a strong covalent bond linking a five-carbon sugar to a phosphate group
sugar-phosphate backbone
a strong covalently linked chain of five-carbon sugar molecules and phosphate groups in a nucleic acid chain
chromosome
a structure made of protein and nucleic acids that carries genetic information
gene
a section of DNA that carries the code to make a protein
genome
the complete set of DNA housed within an organism
antiparallel
a characteristic of DNA strands describing how each strand runs in an opposite direction to the other
complementary base pairing
describes which nucleotides can form hydrogen bonds with each other