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19 Cards in this Set
- Front
- Back
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gene |
section on a chromosome that has genetic information for one trait
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heredity
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the passing of genes from parents to offspring
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allele
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an different form of a gene for a specific trait
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phenotype
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how a trait appears or is expressed
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genotype
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genetic makeup of an organism; two alleles that control the phenotype of a trait
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dominant
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genetic factor that blocks another genetic factor; allele that is expressed
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recessive
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term that describes an allele that is not expressed when combined with a dominant form of the gene; genetic factor that is blocked
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heterozygous
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having two different alleles for a trait
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homozygous
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having two identical alleles for a trait
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Gregor Mendel
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Father of Genetics who studied sexual reproduction in pea plants
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Punnett Square
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a chart that shows all the possible combinations of alleles that can result from a genetic cross; used to predict possible genotypes and phenotypes of offspring
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egg
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haploid sex cell formed in the female reproductive organ
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genetics
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study of how traits are passed from parents to offspring
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hybrid
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offspring of 2 plants or animals with different forms of the same trait
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sperm
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haploid sex cell formed in the male reproductive organs
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codminance
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occurs when both alleles can be observed in the offspring's phenotype
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conclude
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to reach a logically necessary end by reasoning
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incomplete dominance
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occurs when the offspring's phenotype is a blend of the parent's phenotypes
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polygenic inheritance
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occurs when multiple genes determine the phenotype of a trait |
