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Biology Chapter 11B

Part 2 of Chapter 11 Vocab.

TermDefinition
Homozygous having two identical alleles for a particular gene (SAME)
Heterozygous having two different alleles for a particular gene (DIFF)
Phenotype physical (observable) characteristics of an organism
Genotype genetic makeup of an organism (organism's complete set of genes)
Punnett square diagram that can be used to predict the genotype and phenotype combinations of a genetic cross
Independent assortment A Mendel’s principle that states how different genes and alleles independently separate from one another when reproductive cells (gametes) develop
Incomplete dominance situation in which one allele is not completely dominant over another allele (when neither of two alleles is fully dominant nor recessive towards each other)
Codominance situation in which the phenotypes produced by both alleles are completely expressed in a heterozygous
Multiple allele a gene that has more than two alleles
Polygenic trait trait controlled by two or more genes (like height, skin color and eye color)
Test-cross a cross between the dominant phenotype with the recessive phenotype to determine whether or not the dominant trait is heterozygous
Created by: Sammygaga
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