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History of genetics
Learn introductory genetics with Braimy- B.Sc agriculture
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  • Refers to one or few chromosomes extra or missing from 2n.
  • It is of following types:

i) Nullisomic: One chromosome pair missing (2n+/-)

ii) Monosomic: One chromosome missing (2n-2)

iii) Double monosomic: One chromosome from each of two different pairs missing.(2n-1-1)

iv) Trisomic: One chromosome extra (2n+1)

v) Tetrasomic: One chromosome pair extra (2n+2)

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