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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. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene






2. A combining of genes or characters different from what they were in the parents






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






4. Proteins are made of...






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






6. A change or error in the DNA sequence






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






8. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.






9. The independant evolution of similar traits - starting from a similar ancestral condition






10. Innate trait; shared ancestry






11. A unique combination of traits that are passed down from one generation to another.






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






13. Another term for pure breeding






14. The complete genetic material contained in an individual






15. Method of replication that implies that each new strand of DNA is half original and half new






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






17. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor






18. 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.






19. Periods of little adaptive change






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






21. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.






22. Process by which one species gives rise to two or more species






23. Predicts the possible outcome of a genetic cross.






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






25. A nucleotide of RNA is made of...






26. Independent segregation of genes during the formation of gametes






27. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.






28. Building block of a nucleic acid (DNA and RNA)






29. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.






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






31. Translation occurs in the...






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






33. 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






34. Visual expression of a trait






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






36. Geologic period that followed the Precambrian;means 'ancient life' - early life (570-286 million years ago); single cell organisms - shells - mollusks - rise of first vertebrates - rise of land plants - amphibians - insects - seed plants - and trees






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






38. Determined the complete double helical structure of DNA






39. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together






40. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)






41. Organ that serves no useful function in an organism






42. Ribosomal RNA; type of RNA that makes up part of the ribosome






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






44. Gradual evolution within a lineage






45. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes






46. Group of individuals of the same species that live in the same area






47. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies






48. DNA that is coiled around proteins






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






50. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.







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