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






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






3. 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






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






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






6. 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






7. Differences in appearances between the sexes






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






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






10. Form of reproduction more used because it creates Variation






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






12. Results in a genetically identical inidvidual






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






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






15. A subset of a population colonizes a new area






16. Humans selecting certain traits in domestic organisms






17. A widely accepted idea with lots of evidence






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


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






20. Sexual partners chosen based on some characteristics






21. 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






22. Cells that can turn into other cells






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






24. Direct competition for mates with the same sex






25. Mate choice; one sex chooses their mate






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






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






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






29. 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






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






31. The change in a populations genetics






32. Related organisms have similar development plans






33. 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






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






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






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






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






39. The organism with the most advantageous traits will survive






40. Change in alleles due to random chance






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






42. Way more offspring are produced than by sexual reproduction






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






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






45. Directional selection - Disruptive selection - Stabalizing






46. 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






47. Capable of asexual reproduction; most are not






48. Sometimes different species share common ancestors






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






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