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1st 9 Weeks- Week 6
Term | Definition |
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Genes | Set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait. |
Chromosomes | Tightly coiled structures that are made of DNA and contain genes. |
Genetics | The scientific study of heredity. |
Heredity | The passing of traits from parents to offspring. |
Alleles | The different forms of a gene. |
Sex Chromosomes | A pair of chromosomes carrying genes that determine whether a person is male or female. |
Punnett Square | A chart that shows all possible combinations of alleles that can result from a genetic cross. |
Mendel | The father of genetics that first worked with different characteristics of pea plants. |
Genotype | An organism's genetic makeup or allele combination. |
Phenotype | An organism's physical appearance or visible traits. |
Carrier | A person has one recessive allele for a trait, but does not have the trait. |
Nucleotides | Molecule made of sugar, phosphate, & nitrogen bases used to bind DNA. |
Dominant Traits | The trait that always shows up in the organism when it is present. |
Recessive Traits | The trait that is hidden when a dominant trait is present. |