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






2. The change in a populations genetics






3. Humans selecting certain traits in domestic organisms






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






5. Form of reproduction more used because it creates Variation






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






7. 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






8. 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






9. Change in alleles due to random chance






10. Related organisms have similar development plans






11. Cells that can turn into other cells






12. One extreme is selected over the other






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






14. A subset of a population colonizes a new area






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






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






17. The organism with the most advantageous traits will survive






18. 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






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






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






21. Sometimes different species share common ancestors






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






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






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






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






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

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






28. 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






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






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






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






32. Direct competition for mates with the same sex






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






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






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






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






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






38. Way more offspring are produced than by sexual reproduction






39. Sexual partners chosen based on some characteristics






40. Mate choice; one sex chooses their mate






41. Differences in appearances between the sexes






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






43. Selects for the extremes and against the middle






44. Capable of asexual reproduction; most are not






45. The idea that characteristics can enhance an organisms survival






46. Results in a genetically identical inidvidual






47. 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






48. 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






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






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