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






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






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






4. Humans selecting certain traits in domestic organisms






5. One extreme is selected over the other






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


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






8. 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






9. A widely accepted idea with lots of evidence






10. 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






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






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






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






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






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






16. A subset of a population colonizes a new area






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






18. Directional selection - Disruptive selection - Stabalizing






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






20. Selects for the middle and against the extremes






21. Results in a genetically identical inidvidual






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






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






24. Way more offspring are produced than by sexual reproduction






25. 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






26. Sexual partners chosen based on some characteristics






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






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






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






30. The organism with the most advantageous traits will survive






31. Direct competition for mates with the same sex






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






33. Capable of asexual reproduction; most are not






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






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






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






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






38. Related organisms have similar development plans






39. Change in alleles due to random chance






40. Sometimes different species share common ancestors






41. 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






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






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






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






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






46. The change in a populations genetics






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






48. The idea that characteristics can enhance an organisms survival






49. 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






50. 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