Why is a phenotype not always a true reading a of the organism's genotype?© BrainMass Inc. brainmass.com October 10, 2019, 1:08 am ad1c9bdddf
A phenotype is an organism's outward appearance and only shows us what the dominant trait is, or in some cases a combination of traits, codominance. If, for example, an organism has a parent that carries two dominant traits (homozygous) for black hair (BB) and the other parent carries a dominant and recessive (Bb), which means they are heterozygous, the ...
This provides definitions and examples of genotypes and phenotypes and why what we see doesn't tell us the genes someone is carrying. This includes sex-linked traits, too.