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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. 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






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






3. 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






4. Selects for the extremes and against the middle






5. 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






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






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






8. 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






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






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






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






12. 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






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






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






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






16. Mate choice; one sex chooses their mate






17. Form of reproduction more used because it creates Variation






18. The organism with the most advantageous traits will survive






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


20. A widely accepted idea with lots of evidence






21. Way more offspring are produced than by sexual reproduction






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






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






24. Selects for the middle and against the extremes






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






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






27. Capable of asexual reproduction; most are not






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






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






30. Sometimes different species share common ancestors






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






32. Results in a genetically identical inidvidual






33. Related organisms have similar development plans






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






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






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






37. Direct competition for mates with the same sex






38. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






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






44. Humans selecting certain traits in domestic organisms






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






46. 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






47. Change in alleles due to random chance






48. Cells that can turn into other cells






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






50. 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