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genetics(wells)
Question | Answer |
---|---|
list the 3 types of mutation | x-ray uv-ray high-enrgy radition |
what type of mutation caouses sickle | valine |
recessive | the gene that is expressed only if the the dominant gene is not present |
trait | a physical characteristic like eye color, hair color |
gametes | sex cell or reproductive cells. |
heredity | the passing of traits from generation to generation |
genotype | the type of genes an organism has |
phenotype | the physical appearance of an organism |
homozygous or purebred | both copies of gene are the same |
heterozygous or hybrid | has 2 forms of the gene (allele) that are different |
probability | the likelihood of somthing happening |
punnet square | a chart that shows all the possible combinations of the genes from a genetic cross. |
karyotype | is a picture of the pairs of chromosomes |
mitosis | is a type of cell division that makes 2 regular body cells with a full set of chromosomes |
meiosis | is a type of cell divisison that makes 4 sex cells witha half a set of chromosomes |
genes | the areas on chromosomes that control traits |
alleles | the different forms of a gene |