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






2. A widely accepted idea with lots of evidence






3. Selects for the middle and against the extremes






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






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






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






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






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






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






12. The idea that characteristics can enhance an organisms survival






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






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






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






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






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






18. Capable of asexual reproduction; most are not






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






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






21. 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






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






23. 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






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






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


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






27. 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






28. Differences in appearances between the sexes






29. One extreme is selected over the other






30. 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






31. Way more offspring are produced than by sexual reproduction






32. Humans selecting certain traits in domestic organisms






33. The organism with the most advantageous traits will survive






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






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






36. Form of reproduction more used because it creates Variation






37. Directional selection - Disruptive selection - Stabalizing






38. Cells that can turn into other cells






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






40. 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






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






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






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. 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






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






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






47. The change in a populations genetics






48. Mate choice; one sex chooses their mate






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






50. Change in alleles due to random chance