Suppose a dominant allele (n) codes for a big nose and a recessive allele (n) codes for a small nose. imagine that an organism receives a dominant allele from its mom and a dominant allele from its dad. what can be determined about its genotype and phenotype? a. the organism has a large nose, because it's homozygous. b. the organism has a small nose, because it's homozygous. c. the organism has a small nose, because it's heterozygous. d. the organism has a large nose, because it's heterozygous.