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






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






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






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






6. A subset of a population colonizes a new area






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






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






9. The change in a populations genetics






10. 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






11. Selects for the middle and against the extremes






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






13. A widely accepted idea with lots of evidence






14. 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






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






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






17. Sexual partners chosen based on some characteristics






18. Way more offspring are produced than by sexual reproduction






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






20. 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






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






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






23. 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






24. Sometimes different species share common ancestors






25. Related organisms have similar development plans






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






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






28. 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






29. Directional selection - Disruptive selection - Stabalizing






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






31. Results in a genetically identical inidvidual






32. Humans selecting certain traits in domestic organisms






33. Selects for the extremes and against the middle






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






35. One extreme is selected over the other






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

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37. Differences in appearances between the sexes






38. The idea that characteristics can enhance an organisms survival






39. Cells that can turn into other cells






40. The organism with the most advantageous traits will survive






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






42. 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






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






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






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






46. Mate choice; one sex chooses their mate






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






48. Form of reproduction more used because it creates Variation






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






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