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29 Cards in this Set

  • Front
  • Back
Gene
Sequence of DNA that determines a trait
Carpel
Innermost part of a flower that produces the female haploid
Stamen
The male part of a flower
DNA
Carries genetic information in a cell
Genetics
Scientific study of heredity
Homozygous
Refers to an organism that has two identical alleles for a particular trait
Heterozygous
Refers to an organism that has two different alleles for the same trait
Dominant trait
Trait that appears
Recesive trait
Trait that is hidden
Alleles
A number of different forms of a gene
Phenotype
Physical characteristics of an organism
Genotype
Genetic makeup of an organism
(P) Parental Generation
Generation of individuals of different genotypes that are mated --> produces hybrids
(F1) First Filial
(F2) Second Filial
1 - sequence of generations following the parental generation (grandchildren)

2 - great grandchildren
Test-Cross
A cross between one that has the dominant phenotype and one that has a homozygous recessive
- Helps determins genotype of offspring
Law of Segregation
Separation of different versions of the same gene into different gametes
Independent Assortment
Genes on different chromosomes that can be inherited in any combination
Law of Dominance
If there is a dominant trait, it will be expressed
Diploid
A cell that contains both sets of homologous chromosomes
Chromosome
Structure with in the nucleus containing genetic information that is passed from one generation to the next
Cross-Fertilization
Fertilization by the union of gametes from different individuals
Pollination
Transfer of pollen from the male haploid to the femal haploid
Probability
Likelihod that a particular event will occur
Punnet Square
Diagram showing gene combination that might result from a genetic cross
Pure Breeding
When two indiviuals breed of unmixed lineage over many generations
Trait
Specific characteristic that varies from one individual to another
Meiosis
Process by which the number of chromosomes is cut in half
Dihybrid
The hybrid of parents that differ at only two genetic loci
Haploid
Cell that contains only a single set of chromosomes -- single set of genes