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






2. 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






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






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






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






6. Sometimes different species share common ancestors






7. 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






8. Way more offspring are produced than by sexual reproduction






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






10. Selects for the extremes and against the middle






11. 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






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






13. The change in a populations genetics






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






15. Related organisms have similar development plans






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






17. Sexual partners chosen based on some characteristics






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






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






20. Form of reproduction more used because it creates Variation






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






22. A widely accepted idea with lots of evidence






23. 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






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






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






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






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






28. Direct competition for mates with the same sex






29. A subset of a population colonizes a new area






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






31. Differences in appearances between the sexes






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






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






34. Directional selection - Disruptive selection - Stabalizing






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






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






37. 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






38. The idea that characteristics can enhance an organisms survival






39. Mate choice; one sex chooses their mate






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






41. 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






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






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






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






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






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






47. Results in a genetically identical inidvidual






48. Cells that can turn into other cells






49. 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






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