Structure of DNA Flashcards
what is DNA formed by?
nucleotides
what does DNA carry?
genetic information needed for cell reproduction, development & function.
what is the DNA made up of?
bases attached to a sugar phosphate backbone
what do the bases contain
nitrogen
what are the 4 bases
adenine, cytosine, guanine, thymine.
what do the bases formed together make?
double helix shape
what are the base pairs?
A - T
C - G
what are genes
short sections of DNA that carry genetic information for particular characteristics or cell activity.
what do the bases form within a gene
a triplet
what are triplets
each triplet codes for a particular amino acid
what do the bases of genes code for
sequence of amino acids in a polypeptide chain
what do polypeptide chains make up?
proteins
what is osteogenesis imperfecta
alterations to the base pairing sequence that causes brittle bones so that dogs with this condition have increased risk to injury & slow healing
