Genetics and Inheritance (Grade 12 NSC Matric Life Sciences): Flashcards

How characteristics move from parent organisms to their children

Section of DNA on chromosome with instructions for a trait

Different versions of same gene at identical chromosome positions

Organism's complete genetic makeup

Observable physical appearance or characteristics of organism

Alleles expressed in phenotype even when paired with different alleles

Alleles only showing effects when paired with identical recessive allele

Carrying two identical alleles for a trait (e.g. TT or tt)

Carrying two different alleles for same trait (e.g. Tt)

Neither allele dominates; both create blending effect in phenotype