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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. 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






2. Way more offspring are produced than by sexual reproduction






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. Form of reproduction more used because it creates Variation






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






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






7. 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






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






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






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






11. Results in a genetically identical inidvidual






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






13. The organism with the most advantageous traits will survive






14. 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






15. Sometimes different species share common ancestors






16. Selects for the extremes and against the middle






17. 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






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






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






20. Directional selection - Disruptive selection - Stabalizing






21. Humans selecting certain traits in domestic organisms






22. Differences in appearances between the sexes






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






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






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






26. Capable of asexual reproduction; most are not






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






28. 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






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






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






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






32. Cells that can turn into other cells






33. Sexual partners chosen based on some characteristics






34. Related organisms have similar development plans






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






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






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






38. 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






39. Mate choice; one sex chooses their mate






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






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






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






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






44. Change in alleles due to random chance






45. 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






46. Selects for the middle and against the extremes






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


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






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






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