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






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






4. 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






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






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






7. 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






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






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






10. Sometimes different species share common ancestors






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






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






13. Results in a genetically identical inidvidual






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






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






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






17. The change in a populations genetics






18. 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






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






20. 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






21. A widely accepted idea with lots of evidence






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

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23. Sexual partners chosen based on some characteristics






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






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






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






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






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






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






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






31. Humans selecting certain traits in domestic organisms






32. Selects for the extremes and against the middle






33. Capable of asexual reproduction; most are not






34. Directional selection - Disruptive selection - Stabalizing






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






36. Change in alleles due to random chance






37. 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






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






39. Mate choice; one sex chooses their mate






40. One extreme is selected over the other






41. A subset of a population colonizes a new area






42. Form of reproduction more used because it creates Variation






43. The organism with the most advantageous traits will survive






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






45. 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






46. Related organisms have similar development plans






47. Cells that can turn into other cells






48. The idea that characteristics can enhance an organisms survival






49. Selects for the middle and against the extremes






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