Answer:
a) Genetics refers to the study of the genome or DNA that an organism possesses. Heredity refers to the traits that are passed on from the parents to the offspring. Genetic diseases can be hereditary if they are transferred from a parent to a child. Genetic diseases can not be hereditary if they are caused by mutations in the genome and are not transferred to the offsprings.
b) A dominant trait can be described as a trait which arises due to the dominant allele. An individual can be homozygous or heterozygous for the dominant trait. A recessive trait occurs when both the alleles of a gene are recessive for a trait. A recessive allele can be described as the allele which gets masked by the dominant allele in a heterozygous situation.
c) Pure offspring contains one type of genetics in it. A hybrid offspring is formed by more than one type of genes.
