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






2. Direct competition for mates with the same sex






3. 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






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






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






6. The idea that characteristics can enhance an organisms survival






7. Differences in appearances between the sexes






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






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






10. Sometimes different species share common ancestors






11. Capable of asexual reproduction; most are not






12. Cells that can turn into other cells






13. Humans selecting certain traits in domestic organisms






14. A subset of a population colonizes a new area






15. Selects for the extremes and against the middle






16. 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






17. Way more offspring are produced than by sexual reproduction






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






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






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






21. 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






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






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






24. One extreme is selected over the other






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






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






27. The organism with the most advantageous traits will survive






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






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






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






31. 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






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






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






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






35. A widely accepted idea with lots of evidence






36. 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






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






38. Results in a genetically identical inidvidual






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






40. 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






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






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






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






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






45. Related organisms have similar development plans






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






47. Sexual partners chosen based on some characteristics






48. Form of reproduction more used because it creates Variation






49. 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






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







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