| A | B |
|---|
| a diagram used to show possible geneic combinations | Punnett squares |
| The presence of two different alleles on the same gene for one trait | heterozygous |
| alleles that display equal power in determining phenotype | codominate |
| the variations of a specific gene are known as | alleles |
| a record that shows a family tree and family inheritance patterns | pedigree |
| an allele that can mask, or hide, the presence of another allele is | dominant |
| an allele that can be masked, or hidden, by tht presence of another allele is classified as | recessive |
| both alleles influence the phenotype, causing a blended appearance | incomplete dominance |
| an organism that has two different alleles for a particular trait | hybrid |
| the observable characteristics as expressed by the genes | phenotype |
| the transmission of genetic traits from parent to offspring | heredity |
| two possible genotypes for a black haired rabbit | BB Bb |
| the genotype for a white haired rabbit | bb |
| coss a white haired female with a black haired heterozygous male rabbit: possible genotypes | Bb, Bb, bb, bb |
| coss a white haired female with a black haired heterozygous male rabbit: What percentage would be black haired | 50% |
| coss a white haired female with a black haired heterozygous male rabbit: What percentage would be white haired | 50% |
| How can a female rabbit's phenotype, although recessive, show in her offspring? | if the hybrid male donates his recessive whit hair allele, b, it would pair with the female's recessive allele making a bb genotype. The offspring would then show the recessive phenotype. |
| whitHe flowers are crossed with red flowers. The alleles for red and white flowers show incomplete dominance. The allele for red is R. The allele for white is W. What are the resulting genotypes | RW, RW, RW, RW |
| white flowers are crossed with red flowers. The alleles for red and white flowers show incomplete dominance. The allele for red is R. The allele for white is W. What are the resulting phenotypes | They will have a blended appearance due to the incomplete dominance. They will have pink flowers. |
| describe Mendel's pea plant experiments. List 2 concusions he made about genetics. | He cross pollinated pea plants in oder to observe offspring of that cross. He discovered that sometimes tall plants produce short plants, and that crossing two short plants always yielded short plants |
| problems with inbreeding | genetic defects appearing in the phenotype because the animals are too closely related |
| the mating of two closely related animals | inbreeding |
| Benefit of inbreeding | the ability to magnify certain traits. |
| completely masks a recessive trait | dominance |
| allows for both alleles to appear equally in the phenotype | codominance |
| blends the appearance of the two phenotypes | incomplete dominance |
| dominance example | dominance has one allele for tall, one for short, and the organism appears tall |
| codominance example | has one allele for black hare, one for white, and the organism has patches of black and white |
| incomplete dominance example | has one allele for red, one for white, and the flower appears pink |
