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






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






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






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






5. A subset of a population colonizes a new area






6. 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






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






8. Form of reproduction more used because it creates Variation






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






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






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






12. Related organisms have similar development plans






13. 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






14. Differences in appearances between the sexes






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






16. One extreme is selected over the other






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






18. Cells that can turn into other cells






19. A widely accepted idea with lots of evidence






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






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






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






23. 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






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






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






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






27. 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






28. Selects for the extremes and against the middle






29. Mate choice; one sex chooses their mate






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






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






32. Sexual partners chosen based on some characteristics






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






34. Directional selection - Disruptive selection - Stabalizing






35. Change in alleles due to random chance






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






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






38. 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






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






40. 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






41. Direct competition for mates with the same sex






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






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






44. Capable of asexual reproduction; most are not






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






46. The idea that characteristics can enhance an organisms survival






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






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






49. Selects for the middle and against the extremes






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