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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. Humans selecting certain traits in domestic organisms






2. Form of reproduction more used because it creates Variation






3. 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






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






5. The idea that characteristics can enhance an organisms survival






6. Cells that can turn into other cells






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






8. Sometimes different species share common ancestors






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






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






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






12. Direct competition for mates with the same sex






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






14. Results in a genetically identical inidvidual






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






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






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






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






19. The organism with the most advantageous traits will survive






20. Mate choice; one sex chooses their mate






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






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






23. Change in alleles due to random chance






24. Selects for the extremes and against the middle






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






26. 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






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






28. Related organisms have similar development plans






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






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






31. Selects for the middle and against the extremes






32. Differences in appearances between the sexes






33. Directional selection - Disruptive selection - Stabalizing






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






35. Sexual partners chosen based on some characteristics






36. 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






37. A widely accepted idea with lots of evidence






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






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






40. 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






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






42. 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






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






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






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






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






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






48. 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






49. 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






50. One extreme is selected over the other