一个成年人的全身约有的细胞数为：（）

单项选择题现阶段基因组学的两项核心技术是：（）

A.基因克隆技术和合成生物学技术
B.全基因组关联分析和基因编辑技术
C.序列分析和生物信息学分析

多项选择题Challenges of Genetic testing of Inherited（遗传性） retinal（视网膜的） dystrophy（营养不良） include：（）

A.The clinical diagnosis may or may not be specific
B.The inheritance mode is not clear for the isolated cases
C.The progression（进展） of condition can take several decades
D.Locus heterogeneity（位点差异性）

单项选择题In the following mutation screening strategies，which is the most effective and breadth-covered（覆盖广） in nowadays？（）

A.Chromosome banding
B.FISH
C.Mass spectrometry（MS）
D.Next Generation Sequencing（NGS-二代测序）

单项选择题Which statement about essential elements（要素） in a genetic testing for clinicians is NOT true：（）

A.Clinicians should have educational materials about the disease and the test
B.Clinicians should have test result report forms that explain the test and the patient’s testresult
C.Clinicians should have collection of data on phenotype and genotype
D.Essential elements of genetic testing are easy to be acquired（获得）

单项选择题Diseases due to mutations（突变） in different classes of proteins function for：（）

A.Structure of cells and organs
B.Developmental gene expression
C.Transport and storage
D.Control of growth and differentiation
E.All above