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Sex chromosomes will be the X and you may Y chromosomes one play a great part in intercourse distinction
  • Somebody try homozygous towards the regular ?-globin gene (provides a couple normal copies)
  • Somebody was heterozygous (features one to typical and one unpredictable content)
  • Someone is homozygous towards irregular ?-globin gene (keeps a couple of irregular copies)

Those who are heterozygous on the sickle-cell gene get one unaffected duplicate of the gene (from 1 mother) plus one influenced copy of gene (regarding the other moms and dad).