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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. The change in a populations genetics






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






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






4. A widely accepted idea with lots of evidence






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






6. 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






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






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






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






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






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






12. Sometimes different species share common ancestors






13. 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






14. Capable of asexual reproduction; most are not






15. 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






16. 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






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






18. Way more offspring are produced than by sexual reproduction






19. Change in alleles due to random chance






20. Humans selecting certain traits in domestic organisms






21. Mate choice; one sex chooses their mate






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






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






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






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






26. The organism with the most advantageous traits will survive






27. One extreme is selected over the other






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






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






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






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






32. Directional selection - Disruptive selection - Stabalizing






33. 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






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






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






36. Form of reproduction more used because it creates Variation






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






38. Selects for the extremes and against the middle






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






40. A subset of a population colonizes a new area






41. Cells that can turn into other cells






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






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






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






45. 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






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. Results in a genetically identical inidvidual






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






49. Direct competition for mates with the same sex






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







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