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






2. Cells that can turn into other cells






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






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






5. Change in alleles due to random chance






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


7. The change in a populations genetics






8. 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






9. The idea that characteristics can enhance an organisms survival






10. 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






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






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






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






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






15. Way more offspring are produced than by sexual reproduction






16. 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






17. Differences in appearances between the sexes






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






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






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






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






22. 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






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






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






25. Results in a genetically identical inidvidual






26. 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






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






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






29. The organism with the most advantageous traits will survive






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






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






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






33. Related organisms have similar development plans






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






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






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






37. Form of reproduction more used because it creates Variation






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






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






40. Directional selection - Disruptive selection - Stabalizing






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






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






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






44. Humans selecting certain traits in domestic organisms






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






46. Mate choice; one sex chooses their mate






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






48. Sexual partners chosen based on some characteristics






49. Sometimes different species share common ancestors






50. 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