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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. Determined the complete double helical structure of DNA






2. A trait that masks the expression of another trait






3. Proteins are made of...






4. The adaptive increase in pigmentation as a result of human - induced pollutants






5. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with






6. What happens during the process of translation






7. A distinct population of a species that varies from other populations of the same species.






8. The environmental factors that favour certain phenotypes






9. The complete genetic material contained in an individual






10. Organ no longer serves a function






11. Large - scale evolutionary changes that take place over long periods of time






12. Translation occurs in the...






13. The structure on a tRNA molecule that allows it interact with an mRNA molecule






14. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration






15. Innate trait; shared ancestry






16. Name for oism with one dominant and one recessive allele






17. Gradual evolution within a lineage






18. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains






19. Copying the code from DNA onto mRNA






20. The final product of transcription is...






21. The number of times an allele appears in a population






22. Genes contain instructions for assembling






23. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are






24. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.






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






26. Visual expression of a trait






27. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






28. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related






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






30. Nucleotides that control which amino acids are added during protein synthesis






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






32. A nucleotide of RNA is made of...






33. Is found in DNA






34. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches






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






36. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.






37. A change in the base sequence of DNA; the ultimate source of new alleles






38. A limb with five digits (fingers)






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






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






41. Gene

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42. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species






43. A geographic gradient in the extent to which a character is developed in a species






44. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic






45. 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.






46. Evolution resulting from small specific genetic changes that can lead to a new subspecies






47. Found only in that country






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






49. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

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50. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles