Ch. 4 Lesson 1: Heredity Flashcards
The passing of traits from parents to offspring
heredity
An organisms with two different alleles for a trait
one dominant and one recessive
Hybrid
A factor that controls traits
Gene
A physical characteristic of organisms
Trait
An allele whose trait always shows up in the organism
Dominant Allele
Each different form of a gene
Allele
The scientific study of heredity
Genetics
An allele whose trait is hidden in the presence of a dominant allele
Recessive Allele
Who is the father of genetics?
Gregor Mendel
A male sperm cell and a female cell joining is called ____________
Fertilization
If the allele is recessive it is shown with a _________
Lowercase letter
What is the name of the generation that starts with P?
Parent
A trait describes the ________ characteristics of the plant or animal
Physical (what you see)
A plant can be tall or short. Height is an __________
allele
When describing an allele, a capital letter shows that the trait is _____________
Dominant