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






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






3. A subset of a population colonizes a new area






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






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






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






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






8. 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






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






10. The idea that characteristics can enhance an organisms survival






11. 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






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






13. 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






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






15. Selects for the middle and against the extremes






16. 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






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






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






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






20. One extreme is selected over the other






21. 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






22. 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






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






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






25. 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






26. Direct competition for mates with the same sex






27. The organism with the most advantageous traits will survive






28. Differences in appearances between the sexes






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






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






31. Sometimes different species share common ancestors






32. Cells that can turn into other cells






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






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






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






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






37. Directional selection - Disruptive selection - Stabalizing






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






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






40. Selects for the extremes and against the middle






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






42. Mate choice; one sex chooses their mate






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






44. Humans selecting certain traits in domestic organisms






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






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






47. Form of reproduction more used because it creates Variation






48. A widely accepted idea with lots of evidence






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






50. 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