| A | B |
|---|
| The ___ are produced by each parent by meiosis | gametes |
| genotype Aa | heterozygous |
| Mendel's law of segregation | factors (alleles) that control traits seperate and only 1 factor from each pair are passed to the offspring. |
| The passing on of traits from parents to offspring | heredity |
| Cells containing two alleles for each trait | diploid |
| The gamete that contains genes contributed only by the mother | an egg |
| A couple has two children, both are girls. What's the chance the next child will be a girl? | 50 |
| Genes located on homologous chromosomes have alternate forms of a trait. The alternate forms are called: | alleles |
| Mendel crossed two P generation peas: tall and short. Why were the F1 all tall? | Gene for tall was dominant over short |
| Organsim's dipolid number is 14. What's the haploid number? | twelve |
| An organism's haploid number is 23. What's the diploid number? | 46 |
| Chromosomes form tetrads | Prophase I of Meiosis |
| Crossing over | Prophase I of Meiosis |
| Meiosis | Four genetically different haploid cells |
| Linked genes | are inherited together |
| The closer genes are located on a chromosome | Increases likelyhood for linked together |
| Genetic variation arises from these two events: | Crossing over in prophase I, lining up of homologous chromosomes Metaphase I |
| Recessive traits | Only when organism has two recessive alleles for a trait. |
| alleles of different genes are inherited independently of each other (on different chromosomes) | independent assortment |
| another name for a heterozygous is is | hybrid |
| the trait that is observable in a heterozygous individual is: | dominant |
| the trait that is only observable when the individual is homozygous | recessive |
