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






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






4. 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






5. The idea that characteristics can enhance an organisms survival






6. The change in a populations genetics






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






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






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






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






11. 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






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






13. Capable of asexual reproduction; most are not






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






15. Sexual partners chosen based on some characteristics






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






17. 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






18. Way more offspring are produced than by sexual reproduction






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






20. One extreme is selected over the other






21. Change in alleles due to random chance






22. 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






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






24. Differences in appearances between the sexes






25. 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






26. The organism with the most advantageous traits will survive






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

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






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






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






31. Selects for the middle and against the extremes






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






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






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






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






36. Form of reproduction more used because it creates Variation






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






38. Sometimes different species share common ancestors






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






40. 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






41. Mate choice; one sex chooses their mate






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






43. Cells that can turn into other cells






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






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






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






47. Results in a genetically identical inidvidual






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






49. Humans selecting certain traits in domestic organisms






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







Sorry!:) No result found.

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