Test your basic knowledge |

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. 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






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






3. Selects for the extremes and against the middle






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






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






6. 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






7. Form of reproduction more used because it creates Variation






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






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






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






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






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






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






14. The change in a populations genetics






15. Directional selection - Disruptive selection - Stabalizing






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






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






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






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






20. Direct competition for mates with the same sex






21. Differences in appearances between the sexes






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


23. A widely accepted idea with lots of evidence






24. 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






25. Results in a genetically identical inidvidual






26. 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






27. Way more offspring are produced than by sexual reproduction






28. 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






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






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






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






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






33. Cells that can turn into other cells






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






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






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






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






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






39. 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






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






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






42. Sometimes different species share common ancestors






43. The idea that characteristics can enhance an organisms survival






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






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






46. Capable of asexual reproduction; most are not






47. One extreme is selected over the other






48. Mate choice; one sex chooses their mate






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






50. A subset of a population colonizes a new area