Chapter 11- Heredity Flashcards
(17 cards)
A set of traits an organism receives from its parents
Heredity
A characteristic that an organism can pass on to its offspring
Trait
The study of heredity
Genetics
A plant that will always produce offspring with the same form of a trait when it self pollinates
True breeding plant
When the pollen from one plant is used to fertilize another plant
Cross pollination
A unit that determines traits
Gene
Different forms of a gene
Alleles
The form if a gene that when present covers up the appearance of the recessive allele
Dominant allele
The form of a gene that is hidden when the dominant allele is present
Recessive allele
The form of a trait that an organism displays
Phenotype
The alleles of a gene an organism contains
Genotype
Shows all of the possible combinations of alleles from the parents
Punnet square
The mathematical chance that an event will occur
Probability
When the phenotype of the two alleles blend
Incomplete dominance
When an organism that has both alleles of a gene displays both phenotypes at the same time
Codominance
Traits that are determined by more then one gene
Polygenic traits
An Australian monk who studied pea plants
Gregor Mendel
