Heredity-the transmission of genetic characters from parents to offspring.
So when Scout says that Aunt Alexandra has a preoccupation with heredity. She is saying that the beliefs of Aunt Alexandra assumes that since the rest of the Finch women are proper ladies, Scout should be so too.
Aunt Alexandra also implies that Jem will do great things like his father, and this is due to the genetic transmission of the intelligence gene.
Aunt Alexandra
Aunt Alexandra
In "To Kill a Mockingbird," Scout was taken to the pageant by Jem and Aunt Alexandra.
Aunt Alexandra
Scout
Alexandra Finch Hancock is Atticus Finch's sister in Harper Lee's novel "To Kill a Mockingbird." She comes to live with the Finch family to provide a motherly influence for Scout. Alexandra is traditional, proper, and concerned with upholding the family's reputation in the community.
Aunt Alexandra was always ordering Scout out of the kitchen in "To Kill a Mockingbird." She believed in upholding traditional gender roles and felt that the kitchen was not a place for young girls like Scout. Additionally, Aunt Alexandra wanted to instill in Scout the importance of behaving like a proper young lady.
Scout and Aunt Alexandra have a strained relationship in "To Kill a Mockingbird" due to their differing views on femininity and social expectations. Scout is tomboyish and independent, while Aunt Alexandra values tradition and conformity. Despite their differences, they both care for each other and learn to understand and respect each other's perspectives as the story progresses.
Alexandra tells Atticus that Scout needs a feminine influence in her life on page 108 of "To Kill a Mockingbird" by Harper Lee.
Jem is Scout's older brother, (which means that he is a boy)
The narrator of To Kill a Mockingbird, Scout Finch, lives with her father, Atticus, and her brother, Jem. Later on in the novel, Scout's aunt, Aunt Alexandra, stays with the family to help raise Scout to become a proper young lady.
Aunt Alexandra is not married in "To Kill a Mockingbird". She lives with her brother, Atticus Finch, and his two children, Scout and Jem.