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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. Form of reproduction more used because it creates Variation






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






3. 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






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






5. The organism with the most advantageous traits will survive






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






7. The idea that characteristics can enhance an organisms survival






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






9. Sometimes different species share common ancestors






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






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






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






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






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






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






16. Differences in appearances between the sexes






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






18. Directional selection - Disruptive selection - Stabalizing






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






20. The change in a populations genetics






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






22. Selects for the middle and against the extremes






23. Mate choice; one sex chooses their mate






24. Selects for the extremes and against the middle






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






26. Results in a genetically identical inidvidual






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






28. 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






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






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. Direct competition for mates with the same sex






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






33. A subset of a population colonizes a new area






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






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






36. Change in alleles due to random chance






37. 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






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






39. Capable of asexual reproduction; most are not






40. Sexual partners chosen based on some characteristics






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






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






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






44. A widely accepted idea with lots of evidence






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






46. 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






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






48. Humans selecting certain traits in domestic organisms






49. 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






50. Way more offspring are produced than by sexual reproduction