Chapter 3 Flashcards
Heredity
The passing of physical characteristics from parents to offspring
Genetics
The scientific study of heredity
Fertilization
A new organism begins to form when cells join
Purebred
Organism of the offspring of many generations that have the same from of trait
Gene
Describe the factors that control a trait
Alleles
Are the different forms of a gene
Dominate allele
Trait always shows up in organism
Recessive allele
Is hidden when the dominant allele is around
Probability
A number that describes how many times something will occur
Punnnett square
A cahrt that shows all the possible ways allele can combine
Homozygous
Identically allies traits
Heterozygous
An organism that has two different alleles
Phenotype
Psychical apprence or visible traits
Genotype
It’s genetic makeup or alleles
Meiosis
Is the process by which the number of chromosomes is reduced by half as sex cells form