A cooperative effect can occur in some types of multi-subunit proteins, leading to improved function of the subunits when bound to each other. At what level of protein structure does this function arise?

Chimeras are interesting organisms that have two different sets of dna. chimeras occur when when two different zygotes fuse to form one organism. some chimeras have no outward symptoms, while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process