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Biology 1110 Exam 3 Study Guide

by: zjc643

Biology 1110 Exam 3 Study Guide BIO1110



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Principles of Biology I
Study Guide
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This 6 page Study Guide was uploaded by zjc643 on Tuesday October 4, 2016. The Study Guide belongs to BIO1110 at 1 MDSS-SGSLM-Langley AFB Advanced Education in General Dentistry 12 Months taught by Adams in Fall 2016. Since its upload, it has received 15 views. For similar materials see Principles of Biology I in Biology at 1 MDSS-SGSLM-Langley AFB Advanced Education in General Dentistry 12 Months.


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Date Created: 10/04/16
Biology Exam 3 1. _______________ is most appropriate for assessing paternity. - RFLP analysis 2. Prokaryotic cells have small circular pieces of DNA in addition to their circular genome. These smaller circular pieces are called ___________ and allow bacteria to exchange genetic info during times of stress (like when they’re heat shocked). - Plasmids 3. Gel electrophoresis separates nucleic acids on the basis of differences in - Fragment length (size) 4. _______________ invented PCR. - Kary Mullis 5. DNA from two different organisms that’s been spliced together is called: - Recombinant DNA 6. What is the most appropriate DNA technology for assessing whether a woman carries the breast cancer gene? - Polymerase chain reaction (PCR) 7. Most of the soybeans and corn used in U.S. agriculture contains genes from other organisms. An organism that contains the genes of another organism is called: - Transgenic 8. In PCR technology, the two strands of DNA are separated by: - Heating them 9. Which DNA technology is used to turn bacteria into little factories for human insulin? - DNA cloning 10. You are a CSI investigating a murder case. It appears there was a struggle and you collect DNA samples from a blood trail at the scene and from the victim. After interviewing the victim’s associates you suspect the victim’s wife in TN, his baby mama in jersey, his new hunting buddy, and this toothless meth dealer. After a week of lab work generating DNA fingerprints you obtain the fingerprints obtained in the gel. The blood at the crime scene is from: (figure not included) -The baby mama 11. Individuals with trisomy 13 have very short life spans and can be easily diagnosed by the presence of “rocker bottom” feet and a cleft palate. These individuals have ______________ syndrome. - Patau 12. ________________ is the primary cause of aneuploidy. - Nondisjunction 13. A karyotype reveals that an individual is XXY. Based on your knowledge of human genetics you correctly conclude that this individual is phenotypically _____________ and ____________. - Male; sterile 14. People are carriers of for deleterious (deadly) alleles. Genetically speaking, a carrier of such an allele is: - Heterozygous 15. Refer to the figure. Based on the phenotypes of the third generation, the genotype of the father in the second generation must be: - Heterozygous 16. Why are infants with Phenylketonuria healthy at birth? - The mother breaks down phenylalanine for both herself and her fetus. 17. ______________ involves taking a sample of fetal cells from the placenta in the first 2 months of pregnancy so that genetic disorders can be detected early. - Chronic villus sampling 18. Down syndrome usually occurs via aneuploidy, but sometimes it can be caused by a chromosomal abnormality called: - Translocation 19. The ________________ is demonstrated by a high incidence of the sickle cell anemia allele in Africa, where being a carrier of the disease helps increase you likelihood of surviving malaria. - Heterozygote advantage 20. ________________ is a method through which chromosomes are visualized to look for abnormalities or ploidy level. -Karyotyping 21. The principle of nuclear equivalence is the idea that: - The nuclei of all adult cells of an individual are genetically identical 22. ______________ experiments with carrot root cells showed that mature carrot cells can be totipotent. - F.C. Steward’s 23. Embryonic stem cells are _______________ because they can give rise to any type of cell except for the cells of placenta. - Pluripotent 24. The genetic material for Dolly, the first cloned sheep, was a nucleus from - A mammary gland cell of a sheep 25. Plant cells can revert back to totipotency fairly easily while animal cells cannot. -True 26. The results of the experiment outlined in the figure demonstrates: - Totipotency 27. Totipotent human stem cells can only be obtained from - Zygotes 28. Cells becoming committed to a developmental fate is a process known as: - Cell determination 29. Cloned animals tend to suffer from premature aging because - Their telomeres are shorter than normal 30. Human therapeutic cloning would involve all of EXCEPT: - Making a new genetically identical individual 31. Evolution is the change in allele frequency in a ___________ over time. - Population 32. Women of the Kayan Lahwi tribe have performed a practice for many generations of wearing brass coils around their neck to lengthen it; however, this practice has had no effect on the necks of their offspring. This observation is inconsistent with an evolution envisioned by (not the same exact question from the test, but the same concept & answer) - Lamarck 33. The study of the past and present distributions of organisms on Earth is - Biogeography 34. Bird wings and insect wings are an example of - Homoplasy 35. If environmental conditions continue to favor one specific group of homozygotes over the rest of the population, then _____________ selection will eventually occur. - Directional 36. Organisms evolve toward a more perfect state. - False 37. Charles Darwin proposed that evolution could be explained by the differential reproductive success of organisms that resulted from their naturally occurring variation. Darwin called this process_____________. - Natural Selection 38. The Modern Synthesis - Uses genetics to explain the source of heredity variation that is essential to natural selection. 39. Which of these ideas is NOT part of Darwin’s concept of evolution? - Traits acquired during an individual’s life are passed on to its offspring. 40. Evolutionary modifications that improve the survival and reproductive success of an organism is called - Adaptations 41. Refer to the figure (ladybug figure). The evolutionary change from population A to B is an example of ___________selection. - Disruptive 42. Australia has an abundance of distinctive organisms, such as monotremes and marsupials, because it has - been separated and isolated from other land masses for a long period of time 43. Evolution that involves changes in allele frequencies over just a few successive generations is - Microevolution 44. All of the alleles for all loci present in a population is - Gene pool 45. You might want to rethink marrying your first cousin because inbreeding increases _______________ in a population. - Homozygosity 46. Due to rapid change in the environment, a population of ants experienced a bottleneck and is reduced from 1 million to 100. Which evolution process will most likely have the greatest effect on this population? - Genetic Drift 47. The migration of breeding individuals between populations causes corresponding movement of alleles which is - Gene Flow 48. Microevolution can result in macroevolution. - True 49. The only process that can lead to adaptations is - Natural Selection 50. What process provides the genetic variability that natural selection acts on during evolution? - Mutation


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