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






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






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






4. The organism with the most advantageous traits will survive






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






6. Directional selection - Disruptive selection - Stabalizing






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






8. Change in alleles due to random chance






9. Differences in appearances between the sexes






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






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






13. 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






14. Related organisms have similar development plans






15. Sometimes different species share common ancestors






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






17. A widely accepted idea with lots of evidence






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






19. Way more offspring are produced than by sexual reproduction






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






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






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






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






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






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






26. 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






27. Selects for the extremes and against the middle






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






29. Mate choice; one sex chooses their mate






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






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






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






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






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






35. Selects for the middle and against the extremes






36. Direct competition for mates with the same sex






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






38. The idea that characteristics can enhance an organisms survival






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






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






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






43. 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






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


45. 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






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






47. 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






48. The change in a populations genetics






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






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