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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. Sometimes different species share common ancestors






2. Humans selecting certain traits in domestic organisms






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






4. Selects for the middle and against the extremes






5. The idea that characteristics can enhance an organisms survival






6. Form of reproduction more used because it creates Variation






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






8. Cells that can turn into other cells






9. 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






10. Direct competition for mates with the same sex






11. A subset of a population colonizes a new area






12. 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






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






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






15. Directional selection - Disruptive selection - Stabalizing






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






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






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






19. 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






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






21. Selects for the extremes and against the middle






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






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






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






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






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






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






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






29. 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






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






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






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






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






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






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






36. 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






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






38. Related organisms have similar development plans






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






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






41. One extreme is selected over the other






42. The organism with the most advantageous traits will survive






43. Change in alleles due to random chance






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






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






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






47. 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






48. Results in a genetically identical inidvidual






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






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