Is it possible for 2 different DNA sequences to code for the same amino acid?

Answer 1

Potentially, yes.

A single amino acid can have multiple codons. For example, both the codons UAU and UAC code for tyrosine. Francis Crick first described this as "wobble."

So you can see that two genes with slightly different bases can code for the same sequence of amino acids. If both genes are identical except for one changed base pair, the chances that the resulting polypeptide will be the same for both isn't particularly high, but there is still a chance. The chances decrease with every base pair substitution.

This has implications in mutations, as a point mutation may or may not change the protein in translation. If it doesn't due to wobble, the mutation is said to be "silent."

Answer 2

So there are 4 DNA molecules--thynine, guanine, cytosine and adenine (usually people just say T, G, C and A). These molecules can be arranged into different chains, all forming different combinations of letters. The molecules actually code for these things called amino acids, and there are 22 essential amino acids in humans. And then, these amino acids are arranged in different orders and combinations to make proteins.

It takes 3 DNA molecules to give instructions to make one amino acid. So first you have 4 different molecules that can make different combinations of 3, these will then give you different combinations of the 22 different amino acids, and random numbers and combinations of the amino acids can be arranged in different shapes, which results in different proteins.

So basically, it's just a lot levels of organization, and different DNA sequences will end up making the protein combinations all different.

Answer 3

Yes, it is possible for two different DNA sequences to code for the same amino acid through a process called redundancy in the genetic code. This redundancy is due to the fact that multiple codons, or three-nucleotide sequences, can code for the same amino acid.

Answer 4

Sequencing of DNA molecular codes include both a sense and an antisense which can be part of the same molecule. This is how two different molecules can code for the same protein.

Answer 5

Through the utilization of Triplet-Codons.

Answer 6

yes. there is 64 possible codons and 20 amino acids. up to 4 codons can code for the same amino acid