Cape May Raptor Banding Project 40+ Years of Conservation through Banding
Banding: Different extents of chromatin condensation.
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Transcript of Banding: Different extents of chromatin condensation.
Banding: Different extents of chromatin condensation
Allele names according to phenotype
Wild type
amorph
hypomorph
hypermorph
RR
RR
neomorph
R~
R~R~
R~
NULL
Standard Dominant – Recessive
Haploinsufficiency
Lyse Cell and its Nucleus
Human Karyotype – Trisomy 21
disjunctionnon-אי -הפרדההפרדת – כרומ.
junctionחיבור
אי-הפרדה
Non-disjunction in Meiosis I: Animation 18.1a
Non-disjunction in Meiosis II: Animation 18.1b
Down
Patau
Edwards
Animation 17.2b
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
X
Y
X
Y
X+Y
X+Y
X+X
Y
Y
An example:In males
X1
X2
X1+X2
X1+X2
X1 + X1
An example:In females
X1
X2
X2
X2
XXY - Kleinfeldter
XO - Turner
Sex-linked anhidrotic ectodermal dysplasia( absence of sweat glands in blue areas)
XXX, XXY, XXYY
2n 4n
כרוב
צנון
Nullisomics of modern (hexaploid) wheat