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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. 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






2. Cells that can turn into other cells






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






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






5. Change in alleles due to random chance






6. A widely accepted idea with lots of evidence






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






8. Sexual partners chosen based on some characteristics






9. Capable of asexual reproduction; most are not






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






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






12. Direct competition for mates with the same sex






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






14. Directional selection - Disruptive selection - Stabalizing






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






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






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






18. Differences in appearances between the sexes






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






20. Form of reproduction more used because it creates Variation






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






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






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






24. Mate choice; one sex chooses their mate






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






26. A subset of a population colonizes a new area






27. 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






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






29. 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






30. Humans selecting certain traits in domestic organisms






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






32. The idea that characteristics can enhance an organisms survival






33. Sometimes different species share common ancestors






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






35. 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






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


37. 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






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






39. The organism with the most advantageous traits will survive






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






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






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






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






44. 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






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






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






47. Selects for the extremes and against the middle






48. 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






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






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