This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
Which of the following is regarded as outward expression of gene? 
Select and explain. 
A. Phenotype, B. Proteomics, C. Genotype, D. Anticipation
A: Phenotype
Answer: A: Phenotype 
Explanation: Ref: Robbins 8th ed. P 136-137PhenotypePhysical appearance ascribed to a particular genetic make-upProteomicsMeasurement of all proteins expressed in a cell or tissueGenotypeGenetic composition describing number of chromosomesAnticipationIncrease in severity of disease with successive generations