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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. One extreme is selected over the other






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






3. 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






4. 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






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






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






7. Sexual partners chosen based on some characteristics






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






9. Selects for the middle and against the extremes






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






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

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






13. Cells that can turn into other cells






14. 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






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






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






17. Selects for the extremes and against the middle






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






19. Mate choice; one sex chooses their mate






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






21. The idea that characteristics can enhance an organisms survival






22. Directional selection - Disruptive selection - Stabalizing






23. A widely accepted idea with lots of evidence






24. 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






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






26. The organism with the most advantageous traits will survive






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






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






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






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






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






32. Change in alleles due to random chance






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






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






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






36. A subset of a population colonizes a new area






37. Capable of asexual reproduction; most are not






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






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






40. 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






41. Results in a genetically identical inidvidual






42. Differences in appearances between the sexes






43. Direct competition for mates with the same sex






44. 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






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






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






47. 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






48. Sometimes different species share common ancestors






49. The change in a populations genetics






50. Way more offspring are produced than by sexual reproduction