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10th Biology

Chapter 11 Vocabulary

TermDefinition
Allele One of a number of different forms of a gene
Fertilization Process in sexual reproduction in which male and female reproductive cells join to from a new cell
Gamete Sex Cell
Gene Sequence of DNA that codes for a protein and thus determines a trait; factor that is passed from parent to offspring
Genetics Scientific study of heredity
Hybrid Offspring of crosses between parents with different traits
Principle of dominance Mendel's second conclusion, which states that some alleles are dominant and others are recessive
Segregation Separation of alleles during gamete formation
Trait Specific characteristic of an individual
Genotype Genetic makeup of an organism
Heterozygous Having two different alleles for a particular gene
Homozygous Having identical alleles for a particular gene
Independent assortment One of Mendel's principles that states that genes for different traits can segregate independently during the formation of gametes
Phenotype Physical characteristic of an organism
Probability Likelihood that a particular event will happen
Punnett Square Diagram that can be used to predict the genotype and phenotype combinations of a genetic cross
Codominance Situation in which one allele is not completely dominant over another allele
Incomplete Dominance Situation in which the phenotypes produced by both alleles are completely expressed
Multiple allele A gene that has more than two alleles
Polygenic trait Trait controlled by two or more genes
Created by: LeMay1