A+P II Ch. 29 Matching
| Genetic makeup (combination of alleles for a gene). |
| What are the alternative forms of a gene that code for the same trait called? |
| What do you call a permanent heritable change in an allele that produces a different variant. |
| What percentage of zygotes formed from 2 heterozygous parents would express the recessive allele? |
| Two different alleles for a gene. |
| Tool used to show possible combinations of alleles in offspring of parents whose genotype for a gene is known. |
| What determines a female pattern of development? Male pattern of development? When does this pattern begin? |
| Female- absence of Y. Male- initiated by Y. Embryos identical until about 7 weeks. |
| Chromosomes that are not sex chromosomes. How many in a somatic cell? |
| Term for genes that have more than 2 alleles. Example. |
| Multiple-allele inheritance. ABO blood group has 3 alleles, with 4 phenotypes since A and B are co-dominant. |
| Example of disease caused by a dominant allele. What genotypes would get the disease? |
| Huntington disease. Both homozygous dominant and heterozygous individuals would get the disease. |
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