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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. 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






2. The organism with the most advantageous traits will survive






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






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






5. Cells that can turn into other cells






6. Selects for the extremes and against the middle






7. A widely accepted idea with lots of evidence






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






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






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






11. 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






12. 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






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






14. Results in a genetically identical inidvidual






15. Came up with the term Uniformitarianism(mechanisms for change in the past still occur today; believed at first there was no evolution






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






17. Differences in appearances between the sexes






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






19. 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






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






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






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






23. The idea that characteristics can enhance an organisms survival






24. Sexual partners chosen based on some characteristics






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






26. 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






27. 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






28. Humans selecting certain traits in domestic organisms






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






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






31. Selects for the middle and against the extremes






32. Related organisms have similar development plans






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






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






35. 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






36. A subset of a population colonizes a new area






37. Capable of asexual reproduction; most are not






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






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






40. 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






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






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






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






44. One extreme is selected over the other






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






46. Direct competition for mates with the same sex






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






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






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






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