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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. Mate choice; one sex chooses their mate






2. Related organisms have similar development plans






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






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






5. Selects for the extremes and against the middle






6. Results in a genetically identical inidvidual






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






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






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






10. Direct competition for mates with the same sex






11. 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






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






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






14. 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






15. One extreme is selected over the other






16. 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






17. Humans selecting certain traits in domestic organisms






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






19. Differences in appearances between the sexes






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






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. Way more offspring are produced than by sexual reproduction






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






25. Form of reproduction more used because it creates Variation






26. Directional selection - Disruptive selection - Stabalizing






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

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






29. Cells that can turn into other cells






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






31. A subset of a population colonizes a new area






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






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






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






35. 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






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






37. 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






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






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






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






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






42. Capable of asexual reproduction; most are not






43. The change in a populations genetics






44. 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






45. The idea that characteristics can enhance an organisms survival






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






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






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






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






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