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






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






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






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






5. Selects for the middle and against the extremes






6. Change in alleles due to random chance






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






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






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






10. 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






11. 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






12. Sexual partners chosen based on some characteristics






13. Mate choice; one sex chooses their mate






14. 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






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






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






17. The idea that characteristics can enhance an organisms survival






18. Humans selecting certain traits in domestic organisms






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






20. Way more offspring are produced than by sexual reproduction






21. Differences in appearances between the sexes






22. The change in a populations genetics






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






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






25. A widely accepted idea with lots of evidence






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






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






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






29. 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






30. Direct competition for mates with the same sex






31. One extreme is selected over the other






32. Selects for the extremes and against the middle






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






34. Capable of asexual reproduction; most are not






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






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






37. A subset of a population colonizes a new area






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


39. Related organisms have similar development plans






40. 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






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






42. Form of reproduction more used because it creates Variation






43. The organism with the most advantageous traits will survive






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






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






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






47. Sometimes different species share common ancestors






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






49. Cells that can turn into other cells






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