pg 258 11 1417 19 Sex Linkageare controlled by genes located on either the X or Y chromosome homologous DNAHuman Y ID: 826787
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Sex-Linked Traitspg. 258 #11, 14-17, 19
Sex-Linked Traitspg. 258 #11, 14-17, 19Sex Linkageare controlled by genes located on either the X or Y chromosome.homologous DNA.Human Y :red eyeswhite eyes Female genotypesXRXRXRXrXrXrredMale genotypesAll males who possess Cross #1 P generationfemales all red eyesmales all red eyesCross #2 Fmales half red, half whiteAll of the FX-linked traits are exhibited and a heterozygous female.Can white-eyed offspring be produced by crossing a red-eyed male and a red-eyed female?Sex-Linked Traits in HumansRed-green colour deficiency (CVD)Duchennemuscular dystrophyHairy earsWhy are Y-linked traits not classified as recessive or Tracing human sex-linke
d inheritanceChildren of an affected ma
d inheritanceChildren of an affected male are not always affected.about 50% affected male no affected female offspringXaYXAX-XAXaXAYXaYXAX-XAX-How can each of these observations be explained?X-linked dominantAffected males alwaysaffected female offspring unaffected male offspringHow can each of these observations be explained?if she is heterozygousif she is homozygousAffected females produce:about 50% affected males 50% affected females100% affected offspringDetermine the probability that a woman who is a carrier and a man without hemophilia will have an affected child.H XhXHYThe trait is X-linked. Is it dominant or recessive? Explain.Identify
the genotype of each family member.do
the genotype of each family member.double dose of X-linked genes, One X chromosome in every female cell is inactivatedX-inactivationPseudoautosomalregions and PAR 2) contain the same genes.The other regions of the X and Y are unique to those sex chromosomes.Inactivated X chromosome condenses into It compacts so that it becomes inactive, and attaches to Which X chromosome is inactivated Xtwo cells in the sameembryocats are heterozygous for coat colour.Sex-linked genes are located on the sex Males are more likely to be express X-linked traits because they are heterogametic.Sex-linked traits may be either dominant or Random inactivation of one X chromosome in