A) mutations and linkages
B) cytoplasmic effects and nutrition
C) environmental changes and sexual dimorphism
D) genotype and environment interactions
Correct Answer: D
Solution :
Phenotype is the observable characteristics or the total appearance of an organism. It is determined by its genes, the dominance relationships between the alleles and by the interaction during development between its genetic constitution, (genotype) and the environment. Mutation leads to sudden change or variation and linkage leads to store genotype; Cytoplasmic effect and nutrition generally do not determine the phenotype.
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