Tìm kiếm
DNA
01
DNA
(biochemistry) a chemical substance that carries the genetic information, which is present in every cell and some viruses
What is "deoxyribonucleic acid"?
Deoxyribonucleic acid (DNA) is a molecule that contains the genetic instructions for the development, functioning, and reproduction of all living organisms. DNA is made of two long, twisted strands that form a spiral shape, and it carries the hereditary information used to build and maintain an organism. Each segment of DNA, called a gene, provides instructions for making specific proteins that influence traits and manage various bodily functions. DNA is found in the cells of all living things and is passed from parents to children, directing growth and development.
Ví dụ
The DNA test conclusively proved the suspect's innocence.
The DNA evidence provided conclusive proof of the suspect's guilt.
The termination signal on the DNA marks the end of transcription, and the RNA strand is released.
Scientists labeled the DNA bases with tritium isotopes to monitor DNA replication in dividing cells.
The team modified the plant’s DNA to improve its nutrient profile and shelf life.
