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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 subset of a population colonizes a new area






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






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






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






5. The organism with the most advantageous traits will survive






6. Mate choice; one sex chooses their mate






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






8. Way more offspring are produced than by sexual reproduction






9. One extreme is selected over the other






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






11. Related organisms have similar development plans






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






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






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


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






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






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






18. 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






19. Results in a genetically identical inidvidual






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






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






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






23. 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






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






25. Cells that can turn into other cells






26. 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






27. Sometimes different species share common ancestors






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






29. Change in alleles due to random chance






30. Differences in appearances between the sexes






31. Direct competition for mates with the same sex






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






33. Directional selection - Disruptive selection - Stabalizing






34. Sexual partners chosen based on some characteristics






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






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






37. 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






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






39. The idea that characteristics can enhance an organisms survival






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






41. 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






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






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






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






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. 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






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






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






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






50. Humans selecting certain traits in domestic organisms