Question

what is dominant and recessive

Answer 1

Dominant and recessive are the two types of genes. The main difference between dominant and recessive is, dominant gene is expresses completely in the phenotype while recessive gene is not completely expresses in the phenotype.
The terms dominant and recessive describe the inheritance patterns of certain traits. ... For a recessive allele to produce a recessive phenotype, the individual must have two copies, one from each parent. An individual with one dominant and one recessive allele for a gene will have the dominant phenotype.

Dominant trait : A trait which can express its effect over contrasting trait.

Recssive trait : A trait which canot express its effect over contasting trait or a trait which gets supressed by dominant or constrating trait.