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






2. 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






3. Directional selection - Disruptive selection - Stabalizing






4. The change in a populations genetics






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






6. Capable of asexual reproduction; most are not






7. Humans selecting certain traits in domestic organisms






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






9. One extreme is selected over the other






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






11. 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






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






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






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






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






16. A widely accepted idea with lots of evidence






17. Differences in appearances between the sexes






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






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






21. Form of reproduction more used because it creates Variation






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






23. A subset of a population colonizes a new area






24. Cells that can turn into other cells






25. 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






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






27. Selects for the middle and against the extremes






28. The organism with the most advantageous traits will survive






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






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






31. Way more offspring are produced than by sexual reproduction






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






33. Selects for the extremes and against the middle






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






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






36. Results in a genetically identical inidvidual






37. Mate choice; one sex chooses their mate






38. Direct competition for mates with the same sex






39. Sexual partners chosen based on some characteristics






40. 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






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






42. Related organisms have similar development plans






43. Sometimes different species share common ancestors






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






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






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






47. The idea that characteristics can enhance an organisms survival






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






49. 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






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