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Chapter 2
Human Inheritance
| Question | Answer |
|---|---|
| autosome | chromosomes that contain genes for characteristics that are unrelated to sex. |
| human genome | all the DNA of the human species. |
| Human Genome Project | an international project that includes scientists from around the world that sequenced 3 billion pairs of human DNA. |
| linkage map | shows the location of genes on a chromosome. |
| linked genes | genes that are located on the same chromosome |
| sex chromosomes | the remaining pair of human chromosomes |
| sex-linked gene | genes located on the sex chromosomes |
| X-linked gene | genes on the X chromosome |
| epistasis | where one gene affects the expression of another gene |
| gene therapy | involves inserting normal genes with mutant genes. |
| genetic trait | characteristics that are encoded in DNA |
| multiple allele trait | traits controlled by a single gene with more than two alleles |
| nondisjunction | the failure of replicated chromosomes to separate during meiosis |
| pedigree | usefully tools for studying inheritance patterns |
| pleiotropy | where a single gene affects more than one trait |
| sex-linked trait | traits controlled by genes on the sex chromosome |
| X-linked trait | traits controlled by the genes on the X chromosome |
| biotechnology | the use of technology to change the genetic makeup of living things for human purposes. |
| gene cloning | the process of isolating and making copies of a gene |
| genetic engineering | the recombinant DNA is inserted into a living cell, usually a bacterial cell. |
| pharmacogenomics | a field tailoring medical treatments to people's genetic profile |
| polymerase chain reaction (PCR) | make many copies of a gene or other DNA segement. |
| recombinant DNA | during ligation, the enzyme DNA ligase combines the isolated gene with plasmid DNA from bacteria. |
| synthetic biology | |
| transgenic crop | genetically modified with new genes that code for traits usefully to humans. |