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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. Forms that show how an organisms anatomy change over time






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






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






4. 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






5. 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






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






7. Differences in appearances between the sexes






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






9. One extreme is selected over the other






10. Directional selection - Disruptive selection - Stabalizing






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






12. Humans selecting certain traits in domestic organisms






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






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

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






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






17. A widely accepted idea with lots of evidence






18. Capable of asexual reproduction; most are not






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






20. 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






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






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






23. A subset of a population colonizes a new area






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






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






26. Sometimes different species share common ancestors






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






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






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






30. Direct competition for mates with the same sex






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






32. Selects for the extremes and against the middle






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. Cells that can turn into other cells






36. Form of reproduction more used because it creates Variation






37. 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






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






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






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






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






42. 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






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






44. Related organisms have similar development plans






45. Sexual partners chosen based on some characteristics






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






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






48. Results in a genetically identical inidvidual






49. Selects for the middle and against the extremes






50. Way more offspring are produced than by sexual reproduction