Do all genes code into proteins?

Question

Or are there some that code into some other things?

Answer 1

Not all genes code into proteins.

The original definition of a gene was that it was something that was hereditary which could cause the development of similar traits in the offspring of a parent. Nowadays it is referred to as a strand of DNA which codes for something, as well as the portions of the strand which tell the cell when to transcribe and translate that code.

In summary, DNA is copied into an RNA strand, which may code for a protein. If the RNA strand codes for protein, it is called a messenger RNA. This messenger RNA is translated into a protein by a ribosome. However, this ribosome is itself not a protein, but a modified RNA strand.

So some genes code for RNA strands which act as enzymes, almost like proteins. There are ribosomes, which translate RNA into proteins. There are transfer RNAs, which bring the correct amino acids to the ribosome when it is translating RNA into protein.

Answer 2

No, all genes do not code for proteins. There are a large number of genes that encode things such as ribosomal RNA molecules or transfer RNA molecules. There are also genes that encode RNA based enzymes (ribozymes).

Answer 3

No, some genes, like introns, code for nothing at all.

Answer 4

no most of dna is called dark matter of the genome and doesnt do anything known