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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 idea that characteristics can enhance an organisms survival






2. 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






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






4. Directional selection - Disruptive selection - Stabalizing






5. 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






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






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






8. Sexual partners chosen based on some characteristics






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






10. Way more offspring are produced than by sexual reproduction






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






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






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






14. 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






15. 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






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






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






18. Selects for the extremes and against the middle






19. The organism with the most advantageous traits will survive






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






21. Differences in appearances between the sexes






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






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






24. Capable of asexual reproduction; most are not






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






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






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






28. 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






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






30. Related organisms have similar development plans






31. Humans selecting certain traits in domestic organisms






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






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






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






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

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36. Sometimes different species share common ancestors






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






38. The change in a populations genetics






39. A widely accepted idea with lots of evidence






40. Results in a genetically identical inidvidual






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






42. A subset of a population colonizes a new area






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






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






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






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






47. Cells that can turn into other cells






48. Form of reproduction more used because it creates Variation






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






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