The answer is C(An Allele).
Answer:
A supertype entity
Explanation:
A supertype is a form of entity which has one or even more subgroups to relate to. A subtype is an entity type sub-group of entities that is relevant to the organisation and shares similar characteristics or relations which are different from certain sub-groups.
The entity supertype is a different form of entity type which has relationship with one or even more subtypes and includes subtypes ' of specific attributes.
No one you need to take care of yourself sis
Oxygen is non metal meaning they are negative
A genetic disorder at the cellular level
Hope this helps......!