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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Distribution of organisms related to evolution; different organisms play the same roles on different continents; island organisms resemble organisms on nearby mainland






2. Change in the DNA sequence of an individual; the only true way to get a new allele; the source of all heritable variation






3. Selects for the middle and against the extremes






4. Results in a genetically identical inidvidual






5. Results in a tissue or an organ that is identical to the DNA donor






6. Recessive traits persistent to a certain population; recessive alleles hide from selection






7. Form of reproduction more used because it creates Variation






8. The organism with the most advantageous traits will survive






9. Pharmaceutical animals; cloned animals used ot produce products for humans

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10. The movement of genes between two populations e.g. migration - immigration






11. Direct competition for mates with the same sex






12. Believed that change was gradual;Gradualism(the mechanisms of the world - then - are the same today)






13. Cells that can turn into other cells






14. Subset of natural selection that increases the likelihood of mating specifically






15. 1.edits existing variation by using the material it has(variation that exists in population/ no new traits created by natural selection) 2. Has historical constraints(change in old structures) 3. Adaptations are compromises (good for one thing - bad






16. A process to help separate DNA fragments using an electrical current; helps to compare DNA samples by fragment pattern






17. Came up with the term Uniformitarianism(mechanisms for change in the past still occur today; believed at first there was no evolution






18. A circular piece of DNA in bacteria where the gene is placed in Recom. DNA technology






19. Selection fro or against environment; leads to evolution only if variation has genetic components






20. Change in alleles due to random chance






21. The idea that characteristics can enhance an organisms survival






22. A subset of a population colonizes a new area






23. Heterozygous chromosomes have an affect on an individuals genetics/alleles






24. An accumulation of genetic charges over a certain amount of time






25. A widely accepted idea with lots of evidence






26. Traits that are neither advantageous nor disadvantageous; there is no selection






27. Takes the gene from a needed product - puts it into another organism (usually bacteria) and it will make duplicates of the product






28. Forms that show how an organisms anatomy change over time






29. Mate choice; one sex chooses their mate






30. Set sail on the HMS Beagle to travel the islands and areas for signs of evolution; First book written in 1839 'voyage of the Beagle'; Second book published in 1859 'The Origin of Species by means of Natural Selection






31. Another method designed to sort female sperm form male sperm; goes by size of sperm; females are bigger than male sperm






32. Mutation - Natural selection - Genetic drift - Bottleneck effect - Founder effect - Gene flow - and Mate choice/non - random mating






33. Related organisms have similar development plans






34. Cells that can become any cell in the body; found in the embryo






35. Choosing the sperm/egg/embryo that will produce the desired child depending on DNA(genes)






36. Number of offspring in the next generation; your contribution to the gene pool






37. Theory of a stable - nonevolving population in which frequency of alleles do not change; only occurs in large - isolated populations with random mating - and no natural selection or mutations






38. The more common a trait becomes the more likely it will be selected against






39. First to publish mechanisms for evolution; Had 2 idea: Use and disuse - use it more gets bigger; less it disappears - Inheritance of acquired characteristics - pass on changes to offspring






40. Selects for the extremes and against the middle






41. Sexual partners chosen based on some characteristics






42. Capable of asexual reproduction; most are not






43. Taking good genes to replace bad genes; almost never works; has unintended side effects; sometimes just doesn't work; protein becomes degraded - etc






44. Sometimes different species share common ancestors






45. Differences in appearances between the sexes






46. Directional selection - Disruptive selection - Stabalizing






47. Came up with the term catastrophism(sudden events that lead to extinction - but not in todays time)






48. The change in a populations genetics






49. When a population becomes smaller and a few individuals survive the event






50. In related organisms the underlying anatomy is similar even when the function is different







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