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






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






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






4. Direct competition for mates with the same sex






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






6. Related organisms have similar development plans






7. 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






8. Selects for the extremes and against the middle






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






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






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






12. The idea that characteristics can enhance an organisms survival






13. Differences in appearances between the sexes






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






15. 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






16. Selects for the middle and against the extremes






17. Results in a genetically identical inidvidual






18. Humans selecting certain traits in domestic organisms






19. A subset of a population colonizes a new area






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






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






22. Change in alleles due to random chance






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






24. Way more offspring are produced than by sexual reproduction






25. A widely accepted idea with lots of evidence






26. The organism with the most advantageous traits will survive






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






28. Sometimes different species share common ancestors






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






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






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






32. 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






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


34. Directional selection - Disruptive selection - Stabalizing






35. Form of reproduction more used because it creates Variation






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






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






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






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






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






41. Sexual partners chosen based on some characteristics






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






43. The change in a populations genetics






44. 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






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






46. 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






47. 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






48. 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






49. Capable of asexual reproduction; most are not






50. One extreme is selected over the other