| A | B |
| alleles | the different forms of a gene. |
| homozygous | the alleles present for a trait are the same. |
| haploid | a cell that contains one member of each chrom. pr. |
| meiosis | the type of cell division that produces gametes. |
| zygote | the cell prod. when a male gamete fuses w/a female gamete. |
| fertilization | the uniting of the male and female gametes. |
| crossing over | the exchange of genetic material between nonsister chromatids. |
| nondisjunction | the failure of homologous chromosomes to separate properly during meiosis. |
| Pollination can best be described as: | the transfer of a male pollen grain to the pistil of a flower. |
| The gamete that contains genes contributed by the mother is: | an egg. |
| Cells containing two alleles for each trait are descr. as: | diploid. |
| In meiosis, the way in which a chrom. pr. separates doesn't affect the way other prs. separate = | independent assortment. |
| Polyploid organisms result from: | nondisjunction. |
| A dog's phenotype can be determined by: | looking at the dog. |
| A couple has 2 kids, both boys. What is chance that the next child will be boy: | 50% |