A pedigree<span> is a diagram showing genetic relationships between members of a family. It is used to analyze patterns of inheritance for specific genetic traits.
i'm not sure how to help you with the other part of the question</span>
The answer to your question is,
Catalysts
-Mabel <3
Answer: BIOLOGICAL PARENTS
Explanation: Heredity and intelligence have been found to be linked,recent studies have shown that Heredity has a very strong relationship with intelligent which has been rated up to about 80%.
Intelligence has been described by different authors to be emotional knowledge, Understanding etc, Zelda,will have a similar intelligence as her Biological parents because intelligence has been found to have a strong Genetic relationship.