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






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






4. 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






5. 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






6. Sometimes different species share common ancestors






7. 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






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






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


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






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






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






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






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






15. A subset of a population colonizes a new area






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






17. 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






18. Differences in appearances between the sexes






19. Way more offspring are produced than by sexual reproduction






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






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






22. Mate choice; one sex chooses their mate






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






24. Cells that can turn into other cells






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






26. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






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






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






35. A widely accepted idea with lots of evidence






36. Results in a genetically identical inidvidual






37. 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






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






39. Direct competition for mates with the same sex






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






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






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






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






44. Sexual partners chosen based on some characteristics






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






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






47. The organism with the most advantageous traits will survive






48. Selects for the extremes and against the middle






49. The change in a populations genetics






50. Change in alleles due to random chance