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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. 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






2. Mate choice; one sex chooses their mate






3. Cells that can turn into other cells






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






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






6. Differences in appearances between the sexes






7. Change in alleles due to random chance






8. Way more offspring are produced than by sexual reproduction






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






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






11. One extreme is selected over the other






12. Humans selecting certain traits in domestic organisms






13. 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






14. Sexual partners chosen based on some characteristics






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






16. Results in a genetically identical inidvidual






17. The idea that characteristics can enhance an organisms survival






18. Capable of asexual reproduction; most are not






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






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






21. A subset of a population colonizes a new area






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






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






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






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






26. Sometimes different species share common ancestors






27. 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






28. A widely accepted idea with lots of evidence






29. 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






30. 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






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






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






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






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






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






36. 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






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






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






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






40. The organism with the most advantageous traits will survive






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






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






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






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






45. Direct competition for mates with the same sex






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






47. Related organisms have similar development plans






48. Form of reproduction more used because it creates Variation






49. 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






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