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CSET Genetics And Evolution

Subjects : cset, science, 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. Another name for a gene






2. Identical alleles for a gene






3. Any preserved remains of an organism from the past. Usually found in sedimentary rock.






4. When competition causes two closely related species to become more different in regions where their ranges overlap






5. The backbone of DNA consist of...






6. Chromosomes are collections of many






7. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations






8. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area






9. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures






10. Determined the concept of complementary base pairing






11. Is active during transcription






12. Ribosomes are made of...






13. Found only in that country






14. Change in allele frequencies as a result of the migration of a small subgroup of a population






15. The sum total of an organism's requirements; its way of life






16. Three mRNA nucleotides that code for a specific amino acid






17. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual






18. The type of environment in which an organism or group normally lives or occurs






19. The preserved remains or traces of an organism that lived in the past






20. Change to a chromosome in which part of the chromosome is repeated






21. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number






22. Because of base pairing in DNA the amount of






23. Trait where heterozygous is a blending of two alleles






24. Two alternative forms of a gene e.g Tall vs Short






25. The study relating the evolution of new charateristics to changes in the genes controlling development






26. The environmental factors that favour certain phenotypes






27. The evolutionary process by which a species becomes better suited to its niche.






28. A mutation in which one nucleotide is replaced by another nucleotide






29. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.






30. Innate trait; shared ancestry






31. A group of organisms of the same species occupying a given area.






32. A change in the base sequence of a gene






33. Movement of alleles into or out of a population due to the migration of individuals to or from the population






34. Is the evolutionary process whereby a population becomes better suited to its habitat






35. Gene

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36. Trait evolves overtime; NO common ancestry






37. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants






38. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y






39. The specific location of a gene on a chromosome






40. The study of the structures of different organisms - looking at homologous parts






41. Condition in which an organism has extra sets of chromosomes






42. A copy of a gene is made during a process called this






43. The study of the past and present distribution of species.






44. Independent segregation of genes during the formation of gametes






45. Which type of Rna functions as a blue print of the genetic code






46. A base found in DNA (but not in RNA). This base pairs with Adenine.






47. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.






48. An episode of large - scale extinction affecting many different groups of organisms within a short period of time






49. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest






50. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.






Can you answer 50 questions in 15 minutes?



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