How can DNA produce two different species?

Answer 1

DNA of any organism is the basic information of it's own body structure. ... Different organisms have different DNA because of evolution. Evolution has affect us all differently and thus it has also been encoded differently in the DNA of multiple species beacuse no two species has undergone the exact same genetic changes.

Answer 2

Different organisms have DNA with nucleotides bases in a different order.

Answer 3

Organisms all possess DNA as their genetic material. What differentiates them (and their DNA) is the sequence of base-pairs within the DNA. The base-pairs are actually specific sequences of nucleotides (i.e. adenine , thymine, guanine and cytosine, labelled A, T, G, and C respectively) which encode genes. In other words, the DNA in each organism is made of these bases, but their sequences differ from organism to organism.

Answer 4

The DNA holds information in the order of the bases. This order is called the base sequence.

Just as CAT and ACT spell different English words and convey widely different meanings, so the different base sequences code for different amino acids. A group of three bases, like CAT, signifies one particular amino acid.

A string of bases codes for a string of amino acids, forming a chain called a polypeptide. This, either on its own or with other chains, forms a protein.

The main significance of proteins is that most enzymesare proteins. Enzymes make reactions happen. You can pretty well say that if an enzyme is absent, the reaction will not go.

You and I do not have enzymes for growing feathers or leaves. That is to say, to grow a leaf requires enzymes for the necessary reactions, and those enzymes are only made in the cells if the DNA has the right base sequences.

So it is really a matter of what the DNA is "saying" in its base sequence.