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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. Scientific explanation of how life changes over time - science is based off of evidence - science is obtained with observation and testing - science is always open to question






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






3. The organism with the most advantageous traits will survive






4. 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






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






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






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






8. Humans selecting certain traits in domestic organisms






9. One extreme is selected over the other






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






11. Mate choice; one sex chooses their mate






12. Sometimes different species share common ancestors






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






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






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






16. Sexual partners chosen based on some characteristics






17. Direct competition for mates with the same sex






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






19. Results in a genetically identical inidvidual






20. Way more offspring are produced than by sexual reproduction






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






22. The idea that characteristics can enhance an organisms survival






23. 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






24. 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






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






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






27. Directional selection - Disruptive selection - Stabalizing






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






29. Change in alleles due to random chance






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






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






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






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






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






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






36. Cells that can turn into other cells






37. 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






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






39. 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






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






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






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






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






44. Form of reproduction more used because it creates Variation






45. Selects for the extremes and against the middle






46. The change in a populations genetics






47. Selects for the middle and against the extremes






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






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






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