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






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






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






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






5. 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






6. Cells that can turn into other cells






7. 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






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






9. Sexual partners chosen based on some characteristics






10. Form of reproduction more used because it creates Variation






11. The organism with the most advantageous traits will survive






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






13. The idea that characteristics can enhance an organisms survival






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






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






16. 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






17. A subset of a population colonizes a new area






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






19. Sometimes different species share common ancestors






20. Way more offspring are produced than by sexual reproduction






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






22. 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






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






24. Mate choice; one sex chooses their mate






25. 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






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. Direct competition for mates with the same sex






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






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






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






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






32. Selects for the extremes and against the middle






33. Capable of asexual reproduction; most are not






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






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






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






37. Differences in appearances between the sexes






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






39. 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






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






41. Selects for the middle and against the extremes






42. 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






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






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






45. Directional selection - Disruptive selection - Stabalizing






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






47. Humans selecting certain traits in domestic organisms






48. Related organisms have similar development plans






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


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