What is DNA ks4?

DNA stands for deoxyribonucleic acid. It is a chemical made up of two long molecules, arranged in a spiral. We refer to this as the double-helix structure. DNA carries genetic information.

What is DNA GCSE science?

The genetic material in the nucleus of a cell is composed of a chemical called DNA . DNA is a polymer, a large and complex molecule. It is made up of two strands forming a twisted ladder structure called a double helix . It carries the genetic code , which determines the characteristics of a living organism .

What is DNA made up of GCSE biology?

DNA is a polymer made from four different nucleotides. Each nucleotide consists of a common sugar and phosphate group with one of four different bases attached to the sugar. DNA contains four bases, A, C, G and T.

What is DNA answer key?

Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). In simple terms, DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and control all chemical processes within the cell.

What is DNA and its function?

Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.

What is the structure of DNA GCSE?

Structure of DNA DNA is a polymer, which is a large molecule made up of smaller, repeating molecules called monomers, specifically referred to as nucleotide bases. These bases continuously repeat along two long strands which twist around each other to form a spiral shape – known as the double helix.

What is DNA kids explanation?

DNA is the material that carries all the information about how a living thing will look and function. For instance, DNA in humans determines such things as what color the eyes are and how the lungs work. Each piece of information is carried on a different section of the DNA. These sections are called genes.

What is a simple explanation of DNA?

Why is DNA so important?

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.

What is DNA made of?

The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people.