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Recombinant Dna Technology

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Comparing an unknown sample of DNA to a known sample by using Gel Electrophoresis; used in crime scenes - paternity tests - and remains identification






2. Way more offspring are produced than by sexual reproduction






3. The change in a populations genetics






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






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






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






7. Humans selecting certain traits in domestic organisms






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






9. Capable of asexual reproduction; most are not






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






11. One extreme is selected over the other






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






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






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






15. 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






16. Results in a genetically identical inidvidual






17. 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






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






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






20. 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






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






22. Selects for the extremes and against the middle






23. 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






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






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






26. Sexual partners chosen based on some characteristics






27. Change in alleles due to random chance






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






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






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






31. 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






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






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






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






35. Cells that can turn into other cells






36. 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






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






38. A subset of a population colonizes a new area






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






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






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






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






43. 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






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






45. Form of reproduction more used because it creates Variation






46. Direct competition for mates with the same sex






47. Directional selection - Disruptive selection - Stabalizing






48. A widely accepted idea with lots of evidence






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






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

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