It is the carrier of genetic information and it is an self replicating material which is present in nearly all living organisms as the main constituent of chromosomes
A person or other organism that has inherited a recessive allele for a genetic trait or mutation but usually does not display that trait or show symptoms of the disease.
A reproductive cell having the haploid number of chromosomes, especially a mature sperm or egg capable of fusing with a gamete of the opposite sex to produce a zygote.