DNA
The code to existence!
DNA
Deoxyribonucleic Acid, more commonly known as DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism. All living things have DNA within their cells. In fact, nearly every cell in a multicellular organism possesses the full set of DNA required for that organism. DNA is located in the nucleus.
What is its structure?
DNA's structure is a double helix. It can also be described by a winding staircase.
What is it?
DNA is made of nucleotides. The nitrogen bases in the nucleotides interlock with each other like a code to form the double helix.
Where is it?
DNA is located in the cells nucleus.
What does it do?
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
DNA Structure and Replication: Crash Course Biology #10
DNA replication
DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance.
DNA protein prodution
When DNA is replicated one strand called RNA is made. RNA interacts with ribosomes to produce proteins.
Heredity
DNA makes up traits that are passed from parent to child.
Types of RNA
mRNA: Messenger RNA (mRNA) is a large family of RNA molecules that convey genetic information from DNA to the ribosome, where they specify the amino acid sequence of the protein products of gene expression.
rRNA: Ribosomal ribonucleic acid (rRNA) is the RNA component of the ribosome, and is essential for protein synthesis in all living organisms.
tRNA: tRNA is an adaptor molecule composed of RNA, typically 73 to 94 nucleotides in length, that serves as the physical link between the nucleotide sequence of nucleic acids (DNA and RNA) and the amino acid sequence of proteins.
What does RNA do?
RNA serves for the purpose in making proteins for any need in the body.