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






2. The change in a populations genetics






3. 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






4. Sometimes different species share common ancestors






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






6. 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






7. 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






8. Change in alleles due to random chance






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






10. Mate choice; one sex chooses their mate






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






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






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






14. Form of reproduction more used because it creates Variation






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






17. A widely accepted idea with lots of evidence






18. Results in a genetically identical inidvidual






19. 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






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






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






22. Selects for the extremes and against the middle






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






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






25. Capable of asexual reproduction; most are not






26. 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






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






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






29. Related organisms have similar development plans






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


31. The organism with the most advantageous traits will survive






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






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






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






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






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






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






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






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






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






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






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






43. 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






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






45. Humans selecting certain traits in domestic organisms






46. Differences in appearances between the sexes






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






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






49. 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






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