gametes containilng segregation leads to nullisomic (missing : some) gametes or

Question

gametes containilng segregation leads to nullisomic (missing : some) gametes or monosomic gametes in a rom ratio of 1 :I. he chromo- VW al la ex 8.12 A Do es would be present in each of ry 84 How many Barr bodi the following human conditions? (a) Klinefelter syndrome (b) Turner syndrome (c) Down syndrome (d) 47, XYY (e) 47, XXX ity ch thi ry 8.13 Th fer 46 8.14 Ge son refer to the N chromosome that forms a Barr body as "inactive' im a normal human female? A spontaneously aborted human fetus is fou have 45 chromosomes. What is the most pro karyotype? Had the fetus survived, what genetic order would it have had? in is nd t lls 8.6 ne the Del e ar lem ord exp orde es al 8.7 A spontaneously aborted human fetus was sle have the karyotype 92, XXYY. If the zygote e Behavior

Explanation / Answer

8.4

a-Klinefelter syndrome-1 barr body

b-turner syndrome-no barr body

c-down syndrome-no barr body

d-xyy-no barr body

e-xxx-2 barr bodies

8.5-because female shut off one of their x chromosome while their embryonic development was being processed

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