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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 organism with the most advantageous traits will survive






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






3. 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






4. The change in a populations genetics






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






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






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






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






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






10. Mate choice; one sex chooses their mate






11. Selects for the extremes and against the middle






12. 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






13. Selects for the middle and against the extremes






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






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






16. Related organisms have similar development plans






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






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






19. Way more offspring are produced than by sexual reproduction






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






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






22. Form of reproduction more used because it creates Variation






23. Differences in appearances between the sexes






24. Directional selection - Disruptive selection - Stabalizing






25. Capable of asexual reproduction; most are not






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






27. 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






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






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






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






31. Direct competition for mates with the same sex






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






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






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






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

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






37. A widely accepted idea with lots of evidence






38. 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






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






40. 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






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






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






43. A subset of a population colonizes a new area






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






45. Results in a genetically identical inidvidual






46. The idea that characteristics can enhance an organisms survival






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






48. 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






49. One extreme is selected over the other






50. Change in alleles due to random chance