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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. One extreme is selected over the other






2. Cells that can turn into other cells






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






4. Humans selecting certain traits in domestic organisms






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






6. 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






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






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






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






10. 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






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






12. Capable of asexual reproduction; most are not






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






14. Selects for the extremes and against the middle






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






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






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






18. Mate choice; one sex chooses their mate






19. The idea that characteristics can enhance an organisms survival






20. Way more offspring are produced than by sexual reproduction






21. 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






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






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






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






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






26. The organism with the most advantageous traits will survive






27. A subset of a population colonizes a new area






28. Differences in appearances between the sexes






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






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






31. 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






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






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






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






35. Results in a genetically identical inidvidual






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






37. 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






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






39. 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






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






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






42. A widely accepted idea with lots of evidence






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






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






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






46. Directional selection - Disruptive selection - Stabalizing






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






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






49. Direct competition for mates with the same sex






50. Form of reproduction more used because it creates Variation