Ka taea te whakarōpū i ngā huaketo i runga anō i te pūtau kaihautū e pāngia ana e rātou: huaketo kararehe, huaketo tipu, huaketo pūngāwerewere, me ngā huaketo bacteriophage (huaketo e pāngia ana e te huaketo, kei roto nei ngā huaketo tino matatini). Ka whakamahia e tētahi atu whakarōpūtanga te āhua āhuahanga o tō rātou capsid (he maha he he hēlika, he icosahedron) te hanganga rānei o te huaketo (hei tauira, te aroaro, te kore rānei o te āputa lipid). Ka rerekē 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 rātou mā te āhuahanga mārama. Ko te āhua me te hanganga o ngā huaketo kua rangahautia mā te āhuahanga irahiko, te āhuahanga NMR, me te āhuahanga X-ray. Pātai: He aha te āhuahanga e whakamahia ana hei ako i te āhua me te hanganga o ngā huaketo?
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