click below
click below
Normal Size Small Size show me how
intro to genetics-au
key terms of chapter 11.
| Question | Answer |
|---|---|
| the scientific study of heredity. | genetics |
| when male and female reproductive cells join during sexual reproduction. | fertilization |
| a specific characteristic, such as a seeds coloror plant height, on an individual. | trait |
| the offspring of crosses between parents with different traits. | hybrids |
| factors that are passed from parent to offspring. | genes |
| The different forms of a gene | alleles |
| mendel's second conclusion. this principle states that some alleles are dominant and others are recessive | principle of dominance |
| separation of allels | segregation |
| sex cells | gametes |
| the likelihood that a particular event will occur. | probability |
| organisms that have two identical alleles for a particular gene are said to be: | homozygous |
| organisms that have two different alleles for the same gene are called: | heterozygous |
| physical traits | phenotype |
| genetic makeup | genotype |
| uses mathematical probability to help predict the genotype and phenotype combinations in genetic crosses | punnet square |
| cases in which one allele is not completely dominant over another | incomplete dominance |
| where the phenotype produced by both alleles are clearly expressed. | codominance |
| many genes exist in several different forms and are therefore said to have multiple alleles. | multiple alleles |
| Many traits are produced by the interaction of several genes. | polygenic traits |