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Banding: Different extents of chromatin condensation

Banding: Different extents of chromatin condensation. Allele names according to phenotype. amorph. NULL. R ~. R ~. R ~. R ~. hypomorph. Wild type. R. R. R. R. neomorph. hypermorph. Standard Dominant – Recessive . Haploinsufficiency . Human Karyotype – Trisomy 21.

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Banding: Different extents of chromatin condensation

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  1. Banding: Different extents of chromatin condensation

  2. Allele names according to phenotype amorph NULL R~ R~ R~ R~ hypomorph Wild type R R R R neomorph hypermorph

  3. Standard Dominant – Recessive Haploinsufficiency

  4. Human Karyotype – Trisomy 21 Lyse Cell and its Nucleus 

  5. אי-הפרדה non- junction disjunction אי - הפרדה הפרדת – כרומ. חיבור

  6. Non-disjunction in Meiosis I: Animation 18.1a

  7. Non-disjunction in Meiosis II: Animation 18.1b

  8. Patau Edwards Down

  9. Animation 17.2b

  10. Monosomy: Karyotype minus 1 chromosome homolog חסר עותק (הומולוג) אחד של כרומוזום Nullisomy: Karyotype minus both chromosome’s homologs שני העותקים (הומולוגים) של כרומוזום אחד חסרים

  11. An example: In males X+Y X+Y X Y X+X X Y Y Y

  12. An example: In females X1+X2 X1+X2 X1 X2 X1+ X1 X1 X2 X2 X2

  13. XXY - Kleinfeldter

  14. XO - Turner

  15. Sex-linked anhidrotic ectodermal dysplasia (absence of sweat glands in blue areas)

  16. XXX, XXY, XXYY

  17. 4n 2n

  18. צנון כרוב

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