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






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






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






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






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






6. 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






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






8. Capable of asexual reproduction; most are not






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






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






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






12. 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






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






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






15. A subset of a population colonizes a new area






16. Form of reproduction more used because it creates Variation






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






18. Humans selecting certain traits in domestic organisms






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






20. Change in alleles due to random chance






21. 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






22. A widely accepted idea with lots of evidence






23. Results in a genetically identical inidvidual






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






25. 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






26. Selects for the extremes and against the middle






27. Way more offspring are produced than by sexual reproduction






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






29. 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






30. Related organisms have similar development plans






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






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






33. Mate choice; one sex chooses their mate






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






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






36. Direct competition for mates with the same sex






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






38. 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






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






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






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






42. The organism with the most advantageous traits will survive






43. Sexual partners chosen based on some characteristics






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






45. The change in a populations genetics






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






47. One extreme is selected over the other






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






49. 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






50. Directional selection - Disruptive selection - Stabalizing






Can you answer 50 questions in 15 minutes?



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