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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. Form of reproduction more used because it creates Variation






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






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






4. Selects for the extremes and against the middle






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






6. Way more offspring are produced than by sexual reproduction






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






8. 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






9. Humans selecting certain traits in domestic organisms






10. The organism with the most advantageous traits will survive






11. Capable of asexual reproduction; most are not






12. Closely related organisms have more similar DNA sequences and protein structures






13. Selects for the middle and against the extremes






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






15. 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






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






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






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






19. Change in alleles due to random chance






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






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






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






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






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






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






26. Differences in appearances between the sexes






27. Sexual partners chosen based on some characteristics






28. Sometimes different species share common ancestors






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






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

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31. The idea that characteristics can enhance an organisms survival






32. Distribution of organisms related to evolution; different organisms play the same roles on different continents; island organisms resemble organisms on nearby mainland






33. Related organisms have similar development plans






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






35. The process of sperm sorting; separating the male sperm from the female sperm; difference told by swimming speed; boy sperm swim faster than girl sperm; Theory might have flaws in it though - only works 50% of the time






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






37. Directional selection - Disruptive selection - Stabalizing






38. Mate choice; one sex chooses their mate






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






40. A subset of a population colonizes a new area






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






42. Cells that can become only a few different types of cells; mostly adult stem cells; found in bone marrow - the skin epidermis - etc; can sometimes be turned into Totipotent stem cells






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






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






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






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






47. 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






48. 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






49. 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






50. One extreme is selected over the other