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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 organism with the most advantageous traits will survive






2. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






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






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






9. 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






10. 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






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






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






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






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






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






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






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






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






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






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






21. Results in a genetically identical inidvidual






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






23. Sexual partners chosen based on some characteristics






24. 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






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






26. Cells that can turn into other cells






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






28. Related organisms have similar development plans






29. Sometimes different species share common ancestors






30. The idea that characteristics can enhance an organisms survival






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






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






33. 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






34. Way more offspring are produced than by sexual reproduction






35. Form of reproduction more used because it creates Variation






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






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






38. Direct competition for mates with the same sex






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






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

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41. 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






42. Selects for the middle and against the extremes






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






44. A widely accepted idea with lots of evidence






45. The change in a populations genetics






46. Mate choice; one sex chooses their mate






47. 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






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






49. Capable of asexual reproduction; most are not






50. Differences in appearances between the sexes