Animals of similar genetic constitution are said to have same

The genotype refers to the entire set of genes in a cell, an organism, or an individual. A gene for a particular character or trait may exist in two allelic forms, one is dominant (e.g. A) and the other is recessive (e.g. a). Heterozygous is having dissimilar pairs of genes for any hereditary characteristic. Homozygous refers to having identical alleles for a single trait. An allele is a form of a gene. Alleles can exist in alternative forms and organisms typically have two alleles for a given trait. Diploid cells have two alleles per trait, with one allele being donated from each parent. The phenotype is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment. Thus, option C is correct and other options are wrong.