Select all the functions below that apply to proteins:Group of answer choicesServe as the blueprint for organisms by housing genesServe as regulators by being components of signal transduction cascadesTransport molecules and ions around cells and through membranesCarry the message of DNA to the cytoplasm

The functions that apply to proteins are:

1. Serve as regulators by being components of signal transduction cascades: Proteins play a crucial role in signal transduction pathways, which are processes by which a cell responds to changes in its environment. Proteins can act as receptors, enzymes, and secondary messengers in these pathways.

2. Transport molecules and ions around cells and through membranes: Proteins can function as transporters, moving molecules and ions across the cell membrane or within the cell. For example, hemoglobin is a protein that transports oxygen in the blood.

The functions that do not apply to proteins are:

1. Serve as the blueprint for organisms by housing genes: This is the function of DNA, not proteins. DNA contains the genetic information that determines the characteristics of an organism.

2. Carry the message of DNA to the cytoplasm: This is the function of RNA, specifically messenger RNA (mRNA). mRNA is synthesized from DNA and carries the genetic information to the cytoplasm, where it is used to synthesize proteins.