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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. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.






2. Evolution of living things - based on evidence from the past and present.






3. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found






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






5. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz






6. The gradual changes in gene frequencies in a population due to random events






7. The final product of transcription is...






8. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells






9. Gene

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10. Building block of a protein






11. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.






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






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






14. 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.






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






16. Breeding organisms with specific traits in order to produce offspring with identical traits






17. T or F A cloned organism has the same proteins as another organism






18. Transfer RNA; type of RNA that carries amino acids to the ribosome






19. Any agent that can cause a change in DNA






20. The environmental factors that favour certain phenotypes






21. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.






22. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid






23. Process by which a ribosome uses the code on mRNA to make proteins






24. Form of reproductive isolation in which two populations reproduce at different times






25. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.






26. Trait evolves overtime; NO common ancestry






27. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks






28. Selection acting against the middle of a range of variation






29. Determined the concept of complementary base pairing






30. Separates DNA by size






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






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






33. A trait that masks the expression of another trait






34. When zygote does not complete development or is physically weaker than normal






35. Used x ray cyrstallography to create an image of DNA






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






37. The region of the chromosome that holds the two sister chromatids together during mitosis






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






39. What does DNA stand for...






40. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.






41. Mutation where an extra base is added






42. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.






43. Selection for the ability to obtain a mate






44. The backbone of DNA consist of...






45. The signal on a mRNA molecule that designates the end of the coding sequence is called the...






46. Innate trait; shared ancestry






47. Embryos of similar organisms have very similar early development indicating similar DNA at work






48. Closely related species occupying different habitats - niches preventing them from interbreeding






49. Translation occurs in the...






50. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.