0
"Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms. The main role of DNA molecules is the long-term storage of information. DNA is often compared to a set of blueprints, since it contains the instructions needed to construct other components of cells, such as proteins and RNA molecules. The DNA segments that carry this genetic information are called genes, but other DNA sequences have structural purposes, or are involved in regulating the use of this genetic information.
Chemically, DNA is a long polymer of simple units called nucleotides, with a backbone made of sugars and phosphate groups joined by ester bonds. Attached to each sugar is one of four types of molecules called bases. It is the sequence of these four bases along the backbone that encodes information. This information is read using the genetic code, which specifies the sequence of the amino acids within proteins. The code is read by copying stretches of DNA into the related nucleic acid RNA, in a process called transcription. Most of these RNA molecules are used to synthesize proteins, but others are used directly in structures such as ribosomes and spliceosomes.
Within cells, DNA is organized into structures called chromosomes. These chromosomes are duplicated before cells divide, in a process called DNA replication. Eukaryotic organisms such as animals, plants, and fungi store their DNA inside the cell nucleus, while in prokaryotes such as bacteria it is found in the cell's cytoplasm. Within the chromosomes, chromatin proteins such as histones compact and organize DNA, which helps control its interactions with other proteins and thereby control which genes are transcribed." This definition is taken from Wikipedia.
What else can I help you with?
What is the DNA function?
DNA functions as the storage of genetic information in cells. It carries the instructions needed for the development, functioning, growth, and reproduction of organisms. DNA also plays a crucial role in protein synthesis and gene expression.
What is the difference between coding DNA and junk DNA?
Coding DNA refers to the portion of DNA that contains instructions for making proteins, while junk DNA, also known as non-coding DNA, does not encode proteins. Junk DNA plays roles in regulating gene expression, chromosome structure, and other cellular functions, although its exact functions are still being explored.
What is the major compound in DNA?
DNA is a compound known as deoxyribonucleic acid.
What is the cell structure that contains DNA and controls the functions of the cell called?
cell nucleus
What does a plant cell DNA do?
DNA controls the actions of the plant cell. This includes the processes of the plant cell and all of its functions.
What is the function of the chromatain?
The chromatain have four major functions. They package DNA into a smaller volume to fit in the cell. They strengthen the DNA to allow mitosis, and they prevent damage to DNA. Chromatain control gene expression and DNA replication.
How does DNA talk to you?
DNA directs all of your cell functions.
What are the two major functions that DNA polymerase performs?
DNA polymerase functions to catalyze the synthesis of new DNA strands by adding nucleotides to a growing DNA chain during replication. It also can recognize and correct errors in the newly synthesized DNA through its proofreading activity.
State the two functions of DNA.?
The two functions of DNA are to store genetic information and transmit/express genetic information
What are the major functions of art?
two major functions of art are : Me and YOu.
What is a molecule that carries the instructions for growth and functions of a cell?
DNA
Functions of DNA?
its like a genetic code
Where do all the functions of the cell occur?
dna
What is DNA ligase functions?
Ligase joins together the Okazaki fragments into a continuous strand of DNA.
What makes DNA different from RNA in terms of their structure and functions?
DNA and RNA are both nucleic acids, but they have key differences in their structure and functions. DNA is double-stranded, while RNA is single-stranded. DNA contains the sugar deoxyribose, while RNA contains ribose. DNA stores genetic information, while RNA helps in protein synthesis and other cellular functions.
What are the major functions in manufacturing?
The major manufacturing functions can be identified as:Sales/MarketingAccounting/FinanceOperationsEngineering
What major enzyme involved on replication?
DNA Helicase is the major enzyme involved in the replication of DNA. The reason why it is so important is that it unwinds the DNA which creates two separate strands.
