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【单选题】
“凡事预则立,不预则废”是强调()重要性A.
计划
B.
预防
C.
预测
D.
组织
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皮皮学刷刷变学霸
举一反三
【单选题】Using the technique of electrophoresis to study sickle cell anemia, Pauling concluded that ( ).
A.
polypeptides carry the genetic information
B.
the sickle cell gene chemically alters the hemoglobin protein
C.
DNA carries the genetic information
D.
the one-gene-one-enzyme hypothesis was incorrect
【单选题】Which type of mutation leads to sickle cell anemia? Choose the one best answer.
A.
Silent
B.
Nonsense
C.
Insertion
D.
Deletion
E.
Missense
【单选题】U s ing the technique of electrophoresis to study sickle cell anemia, Pauling concluded that ( ).
A.
polypeptides carry the genetic information
B.
the sickle cell gene chemically alters the hemoglobin protein
C.
DNA carries the genetic information
D.
the one-gene-one-enzyme hypothesis was in c orrect
E.
none of the above
【简答题】镰状细胞贫血( sickle cell anemia) :
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