| A | B |
|---|
| chromosome | a doubled rod of condensed chromatin that carries genes from parents to offspring |
| inheritance | the passing on of traits from parent to offspring |
| chromosome theory of inheritance | genes are carried from parents tot heir offspring on chromosomes |
| gene | the set of information that controls a trait; a segment DNA on a chromosome that codes for a specific trait |
| meiosis | the process by which the number of chomosomes is reduced by half to form sperm and eggs |
| Punnett Square | a way of showing the events that occur at meiosis |
| alleles | the different forms of a gene; pairs are carried on paired chromosomes |
| Meiosis I | stage in which two cells are formed, each with half the number of chromosomes the parent cell had at the beginning of meiosis |
| Meiosis II | stage at which four cells are formed, each with half the number of chromosomes the parent cell had at the beginning of meiosis |
