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






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






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






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






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






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






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






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






9. Differences in appearances between the sexes






10. Sexual partners chosen based on some characteristics






11. Sometimes different species share common ancestors






12. 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






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






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






15. A widely accepted idea with lots of evidence






16. Way more offspring are produced than by sexual reproduction






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






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






19. 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






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






21. The organism with the most advantageous traits will survive






22. The change in a populations genetics






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






24. Capable of asexual reproduction; most are not






25. Selects for the extremes and against the middle






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






27. Directional selection - Disruptive selection - Stabalizing






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






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

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30. Related organisms have similar development plans






31. Direct competition for mates with the same sex






32. A subset of a population colonizes a new area






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






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






35. 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






36. 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






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






38. The idea that characteristics can enhance an organisms survival






39. 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






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






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






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






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






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






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






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






47. One extreme is selected over the other






48. 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






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






50. Form of reproduction more used because it creates Variation