男,3岁。因智力低下就诊,查染色体核型为46,XY,-14,+t(14q21q),其母亲核型为45,XX,-14,-2
男,3岁。因智力低下就诊,查染色体核型为46,XY,-14,+t(14q21q),其母亲核型为45,XX,-14,-21,+t(14q21q)。其母再次生育发生本病的风险为
A.10%
B.25%
C.50%
D.75%
E.100%
男,3岁。因智力低下就诊,查染色体核型为46,XY,-14,+t(14q21q),其母亲核型为45,XX,-14,-21,+t(14q21q)。其母再次生育发生本病的风险为
A.10%
B.25%
C.50%
D.75%
E.100%
3岁男孩,因智力低下就诊,查染色体核型为46,XY,-14,+t(14q21q),其母亲核型为45,XX,–14,–21,+t(14q21q),其母再次生育发生本病的风险为
A.10%
B.25%
C.50%
D.75%
E.100%
A.0.1
B.0.25
C.0.5
D.0.75
E.1
女,2岁。因智力低下就诊,查染色体核型为46,XX,-21,+t(21q21q),其母亲核型为45,XX,-21,-21,+t(2lq21q)。若再生育,其下一代发生本病的风险为
A.10%
B.25%
C.50%
D.75%
E.100%
A.10%
B.25%
C.50%
D.75%
E.100%
A.10%
B.25%
C.50%
D.75%
E.100%
男,3岁。因智能低下、身材矮小入院,染色体检查为:46,XY,-14,+t(14q21q)。追查其母,为平衡易位染色体携带者,核型应为
A.45,XX,-14,-21,+t(14q21q)
B.45,XX,-15,-21,+t(14q21q)
C.46,XX,-15,+t(15q21q)
D.46,XX,-14,+t(14q21q)
E.46,XX,-21,+t(14q21q)
A.47,XY,21
B.46,XY,-13,t3q21q)
C.46,XY/47,21
D.46,XY,-21,t(21q21q)
E.46,XY,-14,t4q21q)
A. 47,XY,21
B. B.46,XY,-13,t3q21q)
C. C.46,XY/47,21
D. D.46,XY,-21,t(21q21q)
E. E.46,XY,-14,t4q21q)
A、45,XX,-14,-21,+t(14q21q)
B、45,XX,-15,-21,+t(15q21q)
C、46,XX,-15,+t(15q21q)
D、46,XX,-14,+t(14q21q)
E、46,XX,-21,+t(14q21q)
A.GH水平测定
B.TRH兴奋实验
C.GHRH兴奋实验
D.染色体核型检查
E.ACTH兴奋实验
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