Question

generally, in genetics, a recessive allele is only expressed if a dominant allele is not present. but in genetics, this may not apply (for example: codominance or incomplete dominance)!

Explanation:

Mendelian genetics follows the laws of segregation and independent assortment. In Mendelian genetics, a recessive allele is only expressed when there is no dominant allele. Non - Mendelian genetics includes concepts like codominance (both alleles are expressed) and incomplete dominance (a blend of alleles is expressed), so the rules of Mendelian genetics may not apply.

Answer:

First blank: Mendelian; Second blank: non - Mendelian