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






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






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. 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






5. Selects for the extremes and against the middle






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






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






8. 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






9. 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






10. Way more offspring are produced than by sexual reproduction






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






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






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






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






15. Sexual partners chosen based on some characteristics






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






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






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






20. Results in a genetically identical inidvidual






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






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






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






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






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






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






27. Selects for the middle and against the extremes






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






29. 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






30. The organism with the most advantageous traits will survive






31. 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






32. Humans selecting certain traits in domestic organisms






33. Cells that can turn into other cells






34. Change in alleles due to random chance






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


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






37. Direct competition for mates with the same sex






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






39. Directional selection - Disruptive selection - Stabalizing






40. 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






41. Differences in appearances between the sexes






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






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






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






45. Sometimes different species share common ancestors






46. 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






47. A widely accepted idea with lots of evidence






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






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






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