InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Question : Discussany twoAllosomal anomalies in human .Allosomalabnormalities in humanbeings . |
|
Answer» Solution :Mitoticor meioticnon -disjunctionof sexchromosomescausesallosomalabnormalities.Severalsexchromosomalabnormalitieshave been detected. E.gKline felter.ssynfrome andTurner.ssyndrome . 1. Klinefelter.sSynfrome (XXY Males ) Thisgeneticis dueto the presenceof an additional copyof the X CHROMOSOME resultingin a karyotypeof 47,XXY. personswith this syndromehave 47 chromosomes (44AA+XXY) . They are usually sterilemales ,tall ,obese, with long LIMBS, highpitched voice ,under developed genetaliaand havefeeblebreast( gynaecomastia) development. 2. Turner.sSyndrome(XO FEMALES ) Thisgeneticdisorderis dueto the lossof a chromosomeresultingin akaryotypeof 45 ,X. Personswiththis syndromehave45chromosome(44 autosomesand oneX chromosome )(44 AA + XO) and are sterile females .Lowstature, webbedneck, under developedbreast ,rudimentarygonads lackof menstrualcycleduring puberty, are the main symtomsof thissyndrome . |
|