DNA & RNA Flashcards
Chromosomes
Threadlike structures within a cell’s nucleus that contain DNA that are passed on from one generation to the next.
Double Helix
The twisted ladder structure of DNA.
Nitrogen Bases
Molecules that contain nitrogen and other elements that makes up the rungs (middle section) of DNA.
Adenine
One of the four nitrogen bases that make up the rungs of DNA; it is abbreviated A.
Thymine
One of the four nitrogen bases that make up the rungs of DNA; it is abbreviated T.
Guanine
One of the four nitrogen bases that make up the rungs of DNA; it is abbreviated G.
Cytosine
One of the four nitrogen bases that make up the rungs of DNA; it is abbreviated C.
Gene
A section of a DNA molecule that contains the information to code for one specific protein.
DNA Replication
The process in which an identical copy of a DNA strand is formed for a new cell.
RNA-Ribonucleic acid
The genetic messenger that carries the genetic code from DNA inside the nucleus to the cytoplasm.
Uracil
A nitrogen base found in RNA instead of thymine; abbreviated U.
DNA
The genetic material that carries information about an organism and is passed from parent to offspring.
