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How is the DNA different in different cell types?
The genome of a cell contains in its DNA sequence the information to make many thousands of different protein and RNA molecules. A cell typically expresses only a fraction of its genes, and the different types of cells in multicellular organisms arise because different sets of genes are expressed.
Is DNA the same in every cell in the body?
Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
What are DNA differences?
The amount of difference in DNA is a test of the difference between one species and another – and thus how closely or distantly related they are.
How is DNA similar between any two people?
Hi Kathylea, DNA is more than 99% similar between any two people. All the differences in how we look, feel, behave and the differences in our health are due to less than 1% difference. DNA comes in long strands called chromosomes, which are kept inside the nucleus of a cell. Every one of our cells has a nucleus with all of the DNA.
Are there any cells in the body that do not have the same DNA?
Almost all cells have the same DNA, but there are a few exceptions. Mature red blood cells which contain no DNA The sperm and the egg that have half the amount of DNA
Why are all the cells in your body the same?
With few exceptions, all cells in a person’s body have the same DNA and genes. As cells divide and grow different genes are expressed, resulting in different cell types. Those cells then produce a variety of proteins specific to the cells they form resulting in most of our chemistry.
Where does DNA stay in a human cell?
As a human, you usually get a set of instructions from your mom and another set from your dad… more (link is external) Nucleus: where DNA stays in the cell, plural is nuclei. Organism: a living thing that can be small like bacteria or large like an elephant. Somatic cells: the cells in your body, except for gametes. Soma is Latin for body.