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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Choosing the sperm/egg/embryo that will produce the desired child depending on DNA(genes)






2. A group of interbreeding organisms living in the same place at the same time






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






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






5. Sometimes different species share common ancestors






6. Differences in appearances between the sexes






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






8. Invented the binomial method(naming of species); also believed that life was fixed






9. Mate choice; one sex chooses their mate






10. Change in alleles due to random chance






11. Related organisms have similar development plans






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






13. Sexual partners chosen based on some characteristics






14. 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






15. Humans selecting certain traits in domestic organisms






16. Way more offspring are produced than by sexual reproduction






17. Directional selection - Disruptive selection - Stabalizing






18. 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






19. The idea that characteristics can enhance an organisms survival






20. Results in a genetically identical inidvidual






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






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






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






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






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






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






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






28. The screening of embryos for genetic disorders; done in In Vitro fertilization(fertilization in a petri dish); PGD removes one cell from the embryo and screens it genetically; embryos with disorders are discarded - ones without are kept and implanted






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






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






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






32. Form of reproduction more used because it creates Variation






33. Cuts DNA in specific sites; the fragments created are usually predictable






34. A subset of a population colonizes a new area






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






36. Comparing an unknown sample of DNA to a known sample by using Gel Electrophoresis; used in crime scenes - paternity tests - and remains identification






37. 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






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






39. Can make large quantities of product; infection free; less expensive than a natural source






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






41. Selects for the middle and against the extremes






42. Cells that can turn into other cells






43. 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






44. All species on earth are fixed; no changes - no new species - no extinction






45. One extreme is selected over the other






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






47. A widely accepted idea with lots of evidence






48. The organism with the most advantageous traits will survive






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






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