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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. Selects for the extremes and against the middle






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






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






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






6. Capable of asexual reproduction; most are not






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






8. 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






9. A widely accepted idea with lots of evidence






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






11. Differences in appearances between the sexes






12. 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






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






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






15. 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






16. One extreme is selected over the other






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






18. The organism with the most advantageous traits will survive






19. 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






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






21. Selects for the middle and against the extremes






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






23. Mate choice; one sex chooses their mate






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






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






26. Way more offspring are produced than by sexual reproduction






27. 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






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






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






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






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






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






33. Cells that can turn into other cells






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






35. Humans selecting certain traits in domestic organisms






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. Direct competition for mates with the same sex






38. The idea that characteristics can enhance an organisms survival






39. Results in a genetically identical inidvidual






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






41. 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






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

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






44. Sometimes different species share common ancestors






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






46. The change in a populations genetics






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






48. Directional selection - Disruptive selection - Stabalizing






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






50. Form of reproduction more used because it creates Variation