Test your basic knowledge |

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






2. Sometimes different species share common ancestors






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






4. 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






5. The change in a populations genetics






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






7. Differences in appearances between the sexes






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






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






10. 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






11. The organism with the most advantageous traits will survive






12. Directional selection - Disruptive selection - Stabalizing






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






14. A widely accepted idea with lots of evidence






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






16. Mate choice; one sex chooses their mate






17. Form of reproduction more used because it creates Variation






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






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






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






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






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






23. Change in alleles due to random chance






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






25. Cells that can turn into other cells






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






27. Selects for the middle and against the extremes






28. 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






29. One extreme is selected over the other






30. Sexual partners chosen based on some characteristics






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






32. 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






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






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


35. Related organisms have similar development plans






36. A subset of a population colonizes a new area






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






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






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






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






41. Humans selecting certain traits in domestic organisms






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






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






44. Direct competition for mates with the same sex






45. Results in a genetically identical inidvidual






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






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






48. Selects for the extremes and against the middle






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






50. Way more offspring are produced than by sexual reproduction