When the DNA of various organisms is sequenced, we see that DNA is conserved amongst cells. In other phrases, different cells in an organisms' body include the same DNA sequences.
Reasons for variations between individuals include unbiased assortment, the alternate of genes (crossing over and recombination) during reproduction (via meiosis), and diverse mutational events. There are at least three motives why genetic variant exists between populations.
Clues to gene features can frequently be acquired with the aid of examining whilst and in which a gene is expressed in the cell or inside the complete organism. Determining the sample and timing of gene expression may be performed with the aid of replacing the coding portion of the gene under study with a reporter gene.
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