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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. 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






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






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






4. Differences in appearances between the sexes






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

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






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






8. Directional selection - Disruptive selection - Stabalizing






9. A widely accepted idea with lots of evidence






10. Selects for the middle and against the extremes






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






12. Form of reproduction more used because it creates Variation






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






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






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






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






17. Results in a genetically identical inidvidual






18. 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






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






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






21. The organism with the most advantageous traits will survive






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






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






24. Cells that can turn into other cells






25. 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






26. Direct competition for mates with the same sex






27. Selects for the extremes and against the middle






28. Capable of asexual reproduction; most are not






29. 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






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






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






32. A subset of a population colonizes a new area






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






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






35. Way more offspring are produced than by sexual reproduction






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






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






38. Mate choice; one sex chooses their mate






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






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






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






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






43. One extreme is selected over the other






44. The change in a populations genetics






45. 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






46. The idea that characteristics can enhance an organisms survival






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






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






49. 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






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







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