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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 30 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. A process to help separate DNA fragments using an electrical current; helps to compare DNA samples by fragment pattern






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






3. A subset of a population colonizes a new area






4. Sometimes different species share common ancestors






5. The organism with the most advantageous traits will survive






6. One extreme is selected over the other






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






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






10. 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






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






12. 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






13. 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






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






15. The change in a populations genetics






16. Way more offspring are produced than by sexual reproduction






17. Differences in appearances between the sexes






18. Results in a genetically identical inidvidual






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






20. 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






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. Form of reproduction more used because it creates Variation






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


24. 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






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






26. The idea that characteristics can enhance an organisms survival






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






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






29. Cells that can turn into other cells






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






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






32. Change in alleles due to random chance






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






34. Directional selection - Disruptive selection - Stabalizing






35. A widely accepted idea with lots of evidence






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






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






38. Selects for the extremes and against the middle






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






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






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






42. Direct competition for mates with the same sex






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






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






45. Related organisms have similar development plans






46. Selects for the middle and against the extremes






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






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






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






50. Capable of asexual reproduction; most are not






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