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






2. A widely accepted idea with lots of evidence






3. Cells that can turn into other cells






4. Selects for the middle and against the extremes






5. 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






6. Humans selecting certain traits in domestic organisms






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






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






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






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






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






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






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






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






15. 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






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






17. 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






18. The organism with the most advantageous traits will survive






19. Selects for the extremes and against the middle






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






21. Directional selection - Disruptive selection - Stabalizing






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






23. Change in alleles due to random chance






24. Capable of asexual reproduction; most are not






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


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






27. Sexual partners chosen based on some characteristics






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






29. Results in a genetically identical inidvidual






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






31. 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






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






33. 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






34. Form of reproduction more used because it creates Variation






35. One extreme is selected over the other






36. The idea that characteristics can enhance an organisms survival






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






38. Related organisms have similar development plans






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






40. Differences in appearances between the sexes






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






43. Mate choice; one sex chooses their mate






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






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






46. Way more offspring are produced than by sexual reproduction






47. Direct competition for mates with the same sex






48. 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






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






50. 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