SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Recombinant Dna Technology
Start Test
Study First
Subjects
:
health-sciences
,
genetics
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. One extreme is selected over the other
Descent with Modification2
Directional selection
Sexual selection
Restriction enzymes
2. Cells that can turn into other cells
Descent with Modification2
Stem cells
Intersexual selection
Historical Context of evolution
3. Believed that change was gradual;Gradualism(the mechanisms of the world - then - are the same today)
Hutton
Micro - sort
Phenotypic variation
DNA fingerprinting
4. Humans selecting certain traits in domestic organisms
Sexual reproduction
Artificial selection(breeding)
Microevolution
Sexual dimrphism
5. Closely related organisms have more similar DNA sequences and protein structures
Molecular similarity
Neutral Variation
Mechanisms of Microevolution
Hutton
6. 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
Genetic drift
Artificial selection(breeding)
Directional selection
Pluripotent stem cells
7. Comparing an unknown sample of DNA to a known sample by using Gel Electrophoresis; used in crime scenes - paternity tests - and remains identification
Germinal choice
DNA fingerprinting
Population
Asexual reproduction
8. An accumulation of genetic charges over a certain amount of time
Descent with Modification
Theory
Cuvier
Sexual selection
9. Results in a tissue or an organ that is identical to the DNA donor
Pluripotent stem cells
Biogeography
Theraputic cloning
Reproductive cloning
10. 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
Diploiding
Intersexual selection
Preimplantation Genetic diagnosis (PGD)
Lamarck
11. Mutation - Natural selection - Genetic drift - Bottleneck effect - Founder effect - Gene flow - and Mate choice/non - random mating
Embryology
Mechanisms of Microevolution
Adaptation
Micro - sort
12. Capable of asexual reproduction; most are not
Most organisms are...
Advantages of Recom. DNA tech
Totipotent stem cells
Reproductive fitness
13. Traits that are neither advantageous nor disadvantageous; there is no selection
Totipotent stem cells
Theory
Neutral Variation
Hutton
14. Selects for the extremes and against the middle
Heterozygote Advantage
Mutation
Disruptive selection
Homology
15. In related organisms the underlying anatomy is similar even when the function is different
Asexual reproduction
Descent with Modification
Homology
Disruptive selection
16. Invented the binomial method(naming of species); also believed that life was fixed
Most organisms are...
Biogeography
Linnaeus
Descent with Modification
17. A circular piece of DNA in bacteria where the gene is placed in Recom. DNA technology
plasmid
Historical Context of evolution
Bottleneck effect
Molecular similarity
18. Mate choice; one sex chooses their mate
Transitional forms
Gel Electrophoresis
Intersexual selection
Sexual dimrphism
19. The idea that characteristics can enhance an organisms survival
Diploiding
Adaptation
Genetic drift
Directional selection
20. Way more offspring are produced than by sexual reproduction
Cuvier
Restriction enzymes
Hardy- Weinberg equilibrium
Asexual reproduction
21. 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
Descent with Modification
Hardy- Weinberg equilibrium
Population
Historical Context of evolution
22. Can make large quantities of product; infection free; less expensive than a natural source
plasmid
Totipotent stem cells
Restriction enzymes
Advantages of Recom. DNA tech
23. Takes the gene from a needed product - puts it into another organism (usually bacteria) and it will make duplicates of the product
Recombinant DNA technology
Sexual reproduction
Diploiding
Population
24. Heterozygous chromosomes have an affect on an individuals genetics/alleles
Heterozygote Advantage
Reproductive cloning
Evolution
Microevolution
25. Taking good genes to replace bad genes; almost never works; has unintended side effects; sometimes just doesn't work; protein becomes degraded - etc
Theory
Founder effect
Advantages of Recom. DNA tech
Gene Therapy
26. The organism with the most advantageous traits will survive
DNA fingerprinting
Recombinant DNA technology
Stabilizing
Natural selection
27. A subset of a population colonizes a new area
Founder effect
Descent with Modification
Transitional forms
Population
28. Differences in appearances between the sexes
Population
Homology
Descent with Modification2
Sexual dimrphism
29. Selection fro or against environment; leads to evolution only if variation has genetic components
Adaptation
Phenotypic variation
Most organisms are...
Disruptive selection
30. Change in the DNA sequence of an individual; the only true way to get a new allele; the source of all heritable variation
Modes of Selection
Disruptive selection
Stem cells
Mutation
31. 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
Mate choice/non - random mating
Frequency dependent selection
Cuvier
Evolution
32. A process to help separate DNA fragments using an electrical current; helps to compare DNA samples by fragment pattern
Modes of Selection
Sexual dimrphism
Gel Electrophoresis
Gene Therapy
33. Distribution of organisms related to evolution; different organisms play the same roles on different continents; island organisms resemble organisms on nearby mainland
plasmid
Advantages of Recom. DNA tech
Biogeography
Diploiding
34. Number of offspring in the next generation; your contribution to the gene pool
Stem cells
Germinal choice
Frequency dependent selection
Reproductive fitness
35. Results in a genetically identical inidvidual
Reproductive cloning
Stabilizing
Pluripotent stem cells
Evolution
36. A group of interbreeding organisms living in the same place at the same time
Population
DNA fingerprinting
Lyell
Stabilizing
37. 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
Directional selection
Natural selection does not make perfect individuals
Frequency dependent selection
Mutation
38. Choosing the sperm/egg/embryo that will produce the desired child depending on DNA(genes)
Descent with Modification2
Germinal choice
'Pharm' animals
DNA fingerprinting
39. 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
Lamarck
Mutation
Directional selection
Population
40. All species on earth are fixed; no changes - no new species - no extinction
DNA fingerprinting
Historical Context of evolution
Adaptation
Reproductive fitness
41. Came up with the term Uniformitarianism(mechanisms for change in the past still occur today; believed at first there was no evolution
Sexual reproduction
Founder effect
Mate choice/non - random mating
Lyell
42. A widely accepted idea with lots of evidence
Biogeography
Stem cells
Linnaeus
Theory
43. Came up with the term catastrophism(sudden events that lead to extinction - but not in todays time)
Descent with Modification2
Mutation
Reproductive cloning
Cuvier
44. When a population becomes smaller and a few individuals survive the event
Restriction enzymes
Ericson Method
Gene flow
Bottleneck effect
45. Another method designed to sort female sperm form male sperm; goes by size of sperm; females are bigger than male sperm
Reproductive cloning
Advantages of Recom. DNA tech
Sexual reproduction
Micro - sort
46. Directional selection - Disruptive selection - Stabalizing
Hutton
plasmid
Modes of Selection
Natural selection
47. Cells that can become any cell in the body; found in the embryo
Heterozygote Advantage
Sexual dimrphism
Totipotent stem cells
Lamarck
48. Cuts DNA in specific sites; the fragments created are usually predictable
Charles Darwin
Sexual reproduction
Restriction enzymes
Directional selection
49. Direct competition for mates with the same sex
DNA fingerprinting
Theory
Intrasexual selection
Most organisms are...
50. Form of reproduction more used because it creates Variation
Germinal choice
Neutral Variation
Intersexual selection
Sexual reproduction