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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. Selects for the middle and against the extremes






2. 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






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






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






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






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






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






8. Mate choice; one sex chooses their mate






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






10. Sexual partners chosen based on some characteristics






11. Selects for the extremes and against the middle






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






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






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






15. 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






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






17. Direct competition for mates with the same sex






18. One extreme is selected over the other






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






20. Form of reproduction more used because it creates Variation






21. 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






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






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






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






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






26. A subset of a population colonizes a new area






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






28. Humans selecting certain traits in domestic organisms






29. 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






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






31. Related organisms have similar development plans






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






33. 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






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






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






36. The idea that characteristics can enhance an organisms survival






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






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






39. 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






40. The organism with the most advantageous traits will survive






41. Results in a genetically identical inidvidual






42. 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






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






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






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






46. Differences in appearances between the sexes






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






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






49. Sometimes different species share common ancestors






50. Directional selection - Disruptive selection - Stabalizing