Answer:
A gene is the basic physical unit of heredity. Genes are made up of a sequence of DNA and carry all the information needed to make us who we are. Genes are passed from parent to child in a specific sequence that decides our traits. Will you be short or tall, have straight hair or curly hair, blue eyes or green?, are a few examples of physical traits.
Could you maybe post a picture of this. Kind of hard to answer a question asking about a visual when you cannot see the visual
C. the endometrial lining of the uterus