【简答题】某家族有两种遗传病:β地中海贫血(“地贫”)是由于11号染色体上β-基因突变导致血红蛋白结构异常,基因型与表现型的关系如表2;蚕豆病是只在X染色体上G6PD酶基因显性突变(用D表示)导致该酶活性降低而引起的,但女性携带者表现正常,请回答: III-11个体的蚕豆病致病基因来自()个体
【单选题】注射完青霉素以后,至少要在医院里面静坐()才能离开。
【单选题】●To determine whether or not the employee correctly understands the message, the project manager needs to(75). (75)
D.
use more than one medium
【单选题】The purpose of the federal needs analysis is to determine.
A.
whether or not a family is below the poverty line
B.
the proportion of not-necessary-expenses in a family's income
C.
whether a family is on financial aid
D.
how much family's should pay in state and local taxes