PSYC 315 Lecture Notes - Lecture 9: Phenotype, Allosome, Mutation
Document Summary
One half of your genetic material (genes) comes from your mother and one half from your father. Genes are immutable: your biological blueprint remains the same from conception to death . Even if your genetic make-up does not change, the expression of those genes can change; also genes are mutable changes can occur in gene sequence. Brain development stops by about age 12 false. Most of our genetic material does not code for any observable traits true. Only a small amount of our genes are physically visible (most of them are background work, things we cannot see) Sex chromosomes (males xy females xx y chromosomes are smaller) Father determines the sex of the child (mother always passes the x chromosome) Mutation change before, during, or after conception. Crossing over two strands of dna, and there are portions of them that may switch sides.
