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






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






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






4. Way more offspring are produced than by sexual reproduction






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






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






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






8. Change in alleles due to random chance






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






10. 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






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






12. Results in a genetically identical inidvidual






13. 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






14. Sometimes different species share common ancestors






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






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






17. 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






18. 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






19. Mate choice; one sex chooses their mate






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






21. Direct competition for mates with the same sex






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






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


24. 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






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






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






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






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






29. 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






30. Cells that can turn into other cells






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






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






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






34. One extreme is selected over the other






35. A subset of a population colonizes a new area






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






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






38. Form of reproduction more used because it creates Variation






39. Capable of asexual reproduction; most are not






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






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






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






43. Selects for the middle and against the extremes






44. Selects for the extremes and against the middle






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






46. 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






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






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






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






50. Humans selecting certain traits in domestic organisms