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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. 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






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






3. Selects for the extremes and against the middle






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






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






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






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






8. Direct competition for mates with the same sex






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






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






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






12. Mate choice; one sex chooses their mate






13. 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






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






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






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






17. A widely accepted idea with lots of evidence






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






19. Selects for the middle and against the extremes






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






21. 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






22. Sometimes different species share common ancestors






23. 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






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






25. 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






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






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






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






29. Change in alleles due to random chance






30. Directional selection - Disruptive selection - Stabalizing






31. Results in a genetically identical inidvidual






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






33. Capable of asexual reproduction; most are not






34. The change in a populations genetics






35. The idea that characteristics can enhance an organisms survival






36. Form of reproduction more used because it creates Variation






37. 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






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






39. The organism with the most advantageous traits will survive






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






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






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






43. A subset of a population colonizes a new area






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

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45. One extreme is selected over the other






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






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






48. 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






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






50. Sexual partners chosen based on some characteristics