遗传学试题求解
1.Whichofthefollowingdiseasesisagoodexampleoflocusheterogeneity?A.Prader-Willisyndrom...
1. Which of the following diseases is a good example of locus heterogeneity?
A.Prader-Willi syndrome
B.Myotonic dystrophy
C.Osteogenesis imperfecta
D.Duchenne muscular dystrophy
E.Hemophilia A
2. Your patient is a 5-year-old girl who appears to have Duchenne muscular dystrophy. What is the most likely genetic explanation for this disease in a girl？
A.She has a 46, XY karyotype with sex reversal.
B.She has skewed（偏离的；倾斜的）X inactivation.
C.She has two independent DMD mutations.
D.She has a dominant negative mutation.
E.This diagnosis is impossible.
3. Which of the following properties would a single nucleotide polymorphism (SNP) have to be detected by Southern blot？
A.It must alter the encoded amino acid sequence
B.It must alter a splice site
C.It must alter a restriction site
D.It must be a nonsense mutation
E. It must alter the stability of the encoded mRNA 展开
A.Prader-Willi syndrome
B.Myotonic dystrophy
C.Osteogenesis imperfecta
D.Duchenne muscular dystrophy
E.Hemophilia A
2. Your patient is a 5-year-old girl who appears to have Duchenne muscular dystrophy. What is the most likely genetic explanation for this disease in a girl？
A.She has a 46, XY karyotype with sex reversal.
B.She has skewed（偏离的；倾斜的）X inactivation.
C.She has two independent DMD mutations.
D.She has a dominant negative mutation.
E.This diagnosis is impossible.
3. Which of the following properties would a single nucleotide polymorphism (SNP) have to be detected by Southern blot？
A.It must alter the encoded amino acid sequence
B.It must alter a splice site
C.It must alter a restriction site
D.It must be a nonsense mutation
E. It must alter the stability of the encoded mRNA 展开
2个回答
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又是zjuer，不会自己动脑子啊，，
追问
就是动完脑子不确定才问的嘛，你以为都像你们这么学霸啊
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cbc
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这个怎么是英文的？
追问
……我们遗传学就是英语教材啊，考试也是英文考
追答
额，，这几个问题太难了。都没怎么接触。c,b,a
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