Cells of the immune system are able to respond to the presence of invading organisms because they recognize the

1 answer:

3 0

They are able to respond to the presence of invading organisms because they recognize the<u> antigen </u>on the surface of organisms. There are specific receptors on the surface of immune system cells.

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Which substance is coded for by A length of dna?

Yuri [45]

The substance that is coded for by a length of DNA is base. The correct option is A.

Nucleobases, also known as nitrogenous bases or simply bases, are nitrogen-containing biological compounds that form nucleosides, which are then components of nucleotides, all of which are the basic building blocks of nucleic acids.

The complete question is attached.

The substance that is coded for by a length of DNA is base.

Thus, the correct option is A.

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