atom is made up of 3 particles protons(positive charge), neutrons(neutral in charge), electrons (negative in charge). proton and neutrons are found in core of atom and form atomic weight of the molecule and electrons moves in shells around core.
example - sodium have 11 protons, 12 neutrons and 11 electrons.
Answer:
Alleles
Explanation:
In diploid organism, genes occur in pairs on chromosomes and such pairs are referred to as allelic pairs. An allele is an alternative form of the same gene that controls the development of a pair of contrasting genes. The genetic constitution of an organism is known as genotype while its phenotype refers to a set of observable characteristics of an organism which are an expression of an individual genotype.
A cell which contains cytoplasm, cell membrane and a nucleus
