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






2. Differences in appearances between the sexes






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






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






5. Humans selecting certain traits in domestic organisms






6. Selects for the middle and against the extremes






7. One extreme is selected over the other






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






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






10. Cells that can turn into other cells






11. 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






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






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






14. Sexual partners chosen based on some characteristics






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






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






17. Direct competition for mates with the same sex






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






19. The idea that characteristics can enhance an organisms survival






20. The organism with the most advantageous traits will survive






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






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






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






24. Directional selection - Disruptive selection - Stabalizing






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






26. 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






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






28. 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






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






30. A widely accepted idea with lots of evidence






31. 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






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






33. Selects for the extremes and against the middle






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






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






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






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

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38. Sometimes different species share common ancestors






39. 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






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






41. Related organisms have similar development plans






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






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






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






45. Form of reproduction more used because it creates Variation






46. 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






47. Change in alleles due to random chance






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






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






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