An organisms genotype is
A. An allele that is expressed whenever it is present
B. An observable trait
C. A trait that is expressed in a homozygous individual
D. The set of alleles an organism has for a trait
A. An allele that is expressed whenever it is present
B. An observable trait
C. A trait that is expressed in a homozygous individual
D. The set of alleles an organism has for a trait