Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Putanga: Ko tētahi peka nui o te pūtaiao huaketo ko te whakarōpū huaketo. Ka taea te whakarōpū i ngā huaketo e ai ki te pūtau kaihautū e pāngia ana e rātau: ngā huaketo kararehe, ngā huaketo tipu, ngā huaketo pūngāwerewere, me ngā huaketo bacteriophage (ngā huaketo e pāngia ana e te huaketo, kei roto hoki ngā huaketo matatini rawa atu). Ko tētahi atu whakarōpūtanga e whakamahi ana i te āhua āhuahanga o to rātau capsid (i te nuinga o te wā he helix, he icosahedron rānei) te hanganga rānei o te huaketo (hei tauira, te noho, te kore rānei o te taupoki lipid). Ko te rahi o ngā huaketo mai i te 30 nm ki te 450 nm, ko te tikanga kāore e taea te kite i te nuinga o rātau ki ngā mōkito mārama. Kua rangahauhia te āhua me te hanganga o ngā huaketo mā te āhuahanga irahiko, te āhuahanga NMR, me te āhuahanga X-ray.  Pātai: He aha ngā āhua ā-rōpū e rua o te capsid?
he heru, he icosahedron rānei