Test your basic knowledge |

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






3. Sometimes different species share common ancestors






4. 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






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






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






7. 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






8. A subset of a population colonizes a new area






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






10. Directional selection - Disruptive selection - Stabalizing






11. One extreme is selected over the other






12. Results in a genetically identical inidvidual






13. 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






14. 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






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






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






17. Humans selecting certain traits in domestic organisms






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






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






20. 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






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






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






23. Way more offspring are produced than by sexual reproduction






24. Related organisms have similar development plans






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






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






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






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






29. 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






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






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






32. Selects for the extremes and against the middle






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






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






35. Form of reproduction more used because it creates Variation






36. The organism with the most advantageous traits will survive






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






38. Selects for the middle and against the extremes






39. Sexual partners chosen based on some characteristics






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






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






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






43. Differences in appearances between the sexes






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






45. Capable of asexual reproduction; most are not






46. Mate choice; one sex chooses their mate






47. Change in alleles due to random chance






48. The idea that characteristics can enhance an organisms survival






49. Cells that can turn into other cells






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