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24 Cards in this Set
- Front
- Back
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A change in a gene or chromosome.
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Mutation
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The process that occurs in sex cells by which the number of chromosomes is reduced in half.
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Meiosis
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A chart that shows all the possible combinations of alleles.
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Punnett Square
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The likelihood that a particular event will occur.
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Probability
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An allele that is masked when a dominate allele is present.
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Recessive Allele
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His work was the foundation for understanding why offspring have traits similiar to their parents.
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Gregor Mendel
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He was the first scientist to use probability to interpret his data.
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Gregor Mendel
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An organism that has two DIFFERENT alleles for a trait.
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Hybrid
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An allele whose trait always shows up in the organism when the allele is present.
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Dominant Allele
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RNA that copies the coded message from DNA in the nucleus and carries the message into the cytoplasm.
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Messenger RNA
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RNA in the cytoplasm that carries amino acid to the ribosome and adds it to the growing protein chain.
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Transfer RNA
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An organism's physical apperance, or visible traits.
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Phenotype
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An organism's genetic makeup.
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Genotype
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According to this theory, genes are carried from parents to their offspring on chromosomes.
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Chromosome Theory of Inheritance
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Having two identical alleles for the same trait.
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Homozygous
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A condition in which neither of the two alleles of a gene are dominant or recessive.
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Codominance
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The passing of traits from parent to offspring
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Heredity
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What an organism can pass on to its offspring through its genes
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Trait
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Having two different alleles for a trait.
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Heterozygous
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A segment of DNA on a chromosome that codes for a specific trait.
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Gene
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An organism that always produces offspring with the SAME from of a trait as the parent.
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Purebred
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Having two diffeent alleles for a trait.
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Heterozygous
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Different forms of a gene
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Alleles
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Living thing
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Organism
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