Somatic+ND+-+Sex+det+handout

Somatic+ND+-+Sex+det+handout - XYY = M(prison study XYY = M...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
©jlmarsh 2006 XX zygote in mitosis XX XX normal daughter cells XXX X XX X ND gives twin abnormal clones Anaphase lag 21 21 21 21 21 21 21 21 21 21 Somatic non-disjunction in Down's norm ND interphase mitosis = Mosaics SEX CHROMOSOME ABNORMALITIES eg.Man Y determines MALE Dros: X:A ratio, Y is irrelevant XY = M XY = M X0 = Turners F (thus Y det M) X0 = M sterile
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: XYY = M (prison study) XYY = M XX = F XX = F XXY = M Kleinfelder(Y det M) XXY = F XXX = F XXX = lethal or super female XXXXXY =M not obtainable| XXXXX =F why viable? lethal Why ? How might these people arise? Normal human Karyotype = 46,XX or 46,XY i.e. 22 pairs of autosomes and the sex chromosomes...
View Full Document

This note was uploaded on 10/27/2009 for the course BIO SCI 05580 taught by Professor Marsh during the Fall '09 term at UC Irvine.

Ask a homework question - tutors are online