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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. Mate choice; one sex chooses their mate






2. Direct competition for mates with the same sex






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






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






5. 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






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






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






8. Results in a genetically identical inidvidual






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






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






11. Way more offspring are produced than by sexual reproduction






12. Selects for the middle and against the extremes






13. A subset of a population colonizes a new area






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






15. Sexual partners chosen based on some characteristics






16. Directional selection - Disruptive selection - Stabalizing






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






18. Sometimes different species share common ancestors






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






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






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






22. Differences in appearances between the sexes






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






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






25. 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






26. Selects for the extremes and against the middle






27. The idea that characteristics can enhance an organisms survival






28. Change in alleles due to random chance






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






30. 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






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






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






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






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






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






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






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






38. 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






39. Humans selecting certain traits in domestic organisms






40. One extreme is selected over the other






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






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






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






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






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






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






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






48. The organism with the most advantageous traits will survive






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






50. 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