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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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 circular piece of DNA in bacteria where the gene is placed in Recom. DNA technology






2. Directional selection - Disruptive selection - Stabalizing






3. 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






4. Change in alleles due to random chance






5. 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






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






7. A widely accepted idea with lots of evidence






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






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






10. The idea that characteristics can enhance an organisms survival






11. The organism with the most advantageous traits will survive






12. Form of reproduction more used because it creates Variation






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






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






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






17. 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






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

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






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






21. Mate choice; one sex chooses their mate






22. Selects for the extremes and against the middle






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






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






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






26. Related organisms have similar development plans






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






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






29. A subset of a population colonizes a new area






30. Cells that can turn into other cells






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






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






33. 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






34. Sometimes different species share common ancestors






35. One extreme is selected over the other






36. Humans selecting certain traits in domestic organisms






37. Selects for the middle and against the extremes






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






39. 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






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






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






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






43. Way more offspring are produced than by sexual reproduction






44. 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






45. Direct competition for mates with the same sex






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






47. Differences in appearances between the sexes






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






49. Capable of asexual reproduction; most are not






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