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






2. Cells that can turn into other cells






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






4. Results in a genetically identical inidvidual






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






6. The idea that characteristics can enhance an organisms survival






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






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






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






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






11. Way more offspring are produced than by sexual reproduction






12. 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






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






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






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






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






18. Differences in appearances between the sexes






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






20. The change in a populations genetics






21. Direct competition for mates with the same sex






22. Sexual partners chosen based on some characteristics






23. Change in alleles due to random chance






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






25. A widely accepted idea with lots of evidence






26. 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






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






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






29. Related organisms have similar development plans






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






31. 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






32. 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






33. Selects for the extremes and against the middle






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






35. One extreme is selected over the other






36. 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






37. 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






38. Mate choice; one sex chooses their mate






39. 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






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






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






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






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






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






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






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






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






48. Directional selection - Disruptive selection - Stabalizing






49. Form of reproduction more used because it creates Variation






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