How DNA is similar in all living organisms?

Answer 1

In every organism, genetic code is made of DNA and RNA that was inherited from their parents. Also, every organism's genetic code has the same codons that code for the same amino acids.

Answer 2

Early forms of life are thought to have used RNA as their sole source of information before DNA existed. The endosymbiotic theory says that millions of years ago a multicellular(eukaryote) organism engulfed a single-celled(prokaryote) organism. Instead of killing the prokaryote, the eukaryote allowed it to remain and incorporated it into its own environment. It is hypothesized that this is the molecular basis for the existence of RNA in eukaryotes.

DNA and RNA differ by one atom. Both eukaryotes and prokaryotes use the same genetic code, and it is repetative in both, to signal the construction of proteins.

Answer 3

DNA is the universal genetic code - every living organism stores its genetic information as DNA. It is called universal because the structure and components of DNA are the same in all organisms (it is other factors, such as the order of the bases and the number of genes that creates differences).

Answer 4

DNA is similar in all living organisms because it is made up of the same basic building blocks called nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base. The sequence of these nucleotides in DNA determines the genetic information that codes for various proteins and traits. This fundamental genetic code is universal among all living things, reflecting a common ancestry.

Answer 5

The gene code is shared by almost all organisms. Bacteria therefore can be programed to synthesize human proteins by inserting human DNA. (Viruses).

Answer 6

The DNA in all living organisms are composed of the same structures, and it's only the sequence of the nitrogenous base that determines what organism you are.