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27 Cards in this Set
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A characteristic that an organism can pass on to its offspring |
Trait |
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The form of a gene that is hidden when the dominant allele is present |
Recessive Allele |
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The study of heredity |
Genetics |
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An organism's genotype describes this |
The alleles of the gene it contains |
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A unit that determines traits |
Gene |
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Different forms of the same gene |
Alleles |
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The form of a gene that masks, or hides, the recessive allele |
Dominant Allele |
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Used to show all of the possible combinations of alleles from parents |
Punnett Square |
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The mathematical chance that an event will occur |
Probability |
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A Punnett square is helpful in predicting both the _______ and _____ of the offspring. |
genotypes; phenotypes |
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Often called the "father of genetics" |
Gregor Mendel |
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This can't be seen in an organism because it's the actual alleles if a gene that the organism contains, |
Genotype |
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Flower color is an example of this in pea plants. Eye color is an example in humans. |
A trait |
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A set of traits that an organism receives from its parents |
Heredity |
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The form of a trait that an organism displays |
Phenotype |
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When the two alleles blend together |
Incomplete dominance |
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When an organism shows the phenotypes of two different alleles at the same time |
Codominance |
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Having both dominant and recessive, or different, traits |
Heterozygous |
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Having the same alleles; represented by two of the same letters |
Homozygous |
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Contain half the number of parental chromosomes |
Sex cells |
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An organism that has two identical alleles for a trait |
Purebred |
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An organism that has two different alleles for a trait |
Hybrid |
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Genes are carried by these structures |
Chromosomes |
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A shorter, easier name for deoxyribonucleic acid; it's known as the "blueprint for life." |
DNA |
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The process of selecting organisms with desired traits to serve as parents for the next generation |
Selective breeding |
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A change in the hereditary material of an organism |
Mutation |
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This parent's genes determine the sex of a baby human. |
Father |
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