Unit 5 Flashcards
Gametes
male/female sex cells
Fertilization
male gamete unites with female gamete
Zygote
the resulting cell from fertilization
Dominant
trait that shows
Recessive
can’t be seen if there is a dominant
Carrier
has dominant and recessive, doesn’t show recessive, but can pass it on
Homozygous
the 2 letters are the SAME size (TT or tt)
Heterozygous
the 2 letters are DIFFERENT sized (Tt)
Phenotype
way an organism looks/behaves
Genotype
what the letters actually are (can’t always be seen)
Genetics
study of heredity, the passing of characteristics from parents to children
Gene
the part of the DNA that codes for a trait
Alleles
variations of the same gene (ex: brown, blue, green eyes)
Gregor Mendel
the father of Genetics
Mendels 3 Laws:
- Law of Segregation
- Law of Independent Assortment
- Law of Dominance