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Chapter 14; Mendel

Trait Specific characteristic of an individual
Hybrid Created from cross of true-breeding individuals
1st generation P parent
Offspring of 1st generation F1 offspring
Genes Passed from one generation to the next. Determine an individual's characteristic
Alleles The different forms of a gene
Some alleles are dominant, some recessive Principle of Dominance
Separation of alleles during gamete formation Segregation
Genotype Genetic makeup
Phenotype Physical traits
Two organisms may share the same ______but have different _____. Phenotype; genotype
Homozygous Two identical alleles for a gene
Heterozygous Two different alleles for a gene
One allele is not completely dominant over another Incomplete dominance
The phenotypes for both alleles are clearly expressed Codominance
Many genes exist in more than two forms Multiple allele
Many traits are produced by the interaction of several genes Polygenic Traits
What is another way of saying gamete? Sex cells
Zygote Half of the chromosomes are from the female and the other half is from the male
What is diploid? Both sets of homologous chromosomes; 2N
What is haploid? Only a single set of chromosomes; 1N
During what phase of meiosis does crossing over occurs? Prophase 1
Created by: ArniseW



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