DNA will survive in the environment for less than one million years and slowly degrades into short fragments in solution. Claims for older DNA have been made, most notably a report of the isolation of a viable bacterium from a salt crystal 250-million years old, but these claims are controversial.
How long DNA survives outside the human body depends on a number of conditions. If DNA is not exposed to heat, light, water, and oxygen, it can survive hundreds of thousands of years.
Let me put this in perpective for you.... You can have your great great grandfather's DNA strand.
They require nutrients, optimal temperature, pH etc. in laboratory environment but may live a long time.
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how is the information stored and coded in DNA and genes
Chromosomes are made of DNA. There is a huge amount of DNA in cells. DNA is typically present at a long chain of building blocks called nucleotides. Since long strands of DNA have to be stored in small spaces, they are tightly rolled and packed into structures called chromosomes
DNA is in nucleus. Also found some in mitochondria and chloroplasts.
cells
dna
DNA is tightly wrapped into chromosomes, and stored within the nucleus of each cell
how is the information stored and coded in DNA and genes
by the DNA. by the DNA.
Because the double helix is the way it is stored. The DNA is so long only parts of it can be unzipped and read at a time.
in your DNA
swag
cells
Chromosomes are made of DNA. There is a huge amount of DNA in cells. DNA is typically present at a long chain of building blocks called nucleotides. Since long strands of DNA have to be stored in small spaces, they are tightly rolled and packed into structures called chromosomes
DNA is in nucleus. Also found some in mitochondria and chloroplasts.
In chromosomes which are stored in DNA strands.
DNA is a double helix
A cell that has DNA within its cytoplasm is stored as chromatin. DNA is stored in the nucleus which is located in the cytoplasm.