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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. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation






2. Predicts the possible outcome of a genetic cross.






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






4. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species






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






6. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome






7. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.






8. Impression made from a organism in soft material such as sand or mud.






9. Chromosomes are collections of many






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






11. A limb with five digits (fingers)






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






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






14. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.






15. A taxon originating from and including a single common ancestor






16. The banding pattern of a persons DNA after being cut and run on gel is called






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






18. Trait where heterozygous is a blending of two alleles






19. Recognize and cut DNA at specific sequences usually palindromes






20. Mating of 2 oism that differ in 2 characters






21. Change to a chromosome in which a fragment of the chromosome is removed






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






23. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA






24. 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.






25. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.






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






27. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances






28. T or F a codon consist of three nucleotides






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






30. Another term for pure breeding






31. A body cell






32. process in which homologous chromosomes exchange portions of their chromatids during meiosis.






33. Genes contain instructions for assembling






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






35. The formation of new species as a result of evolution






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






37. Speciation which does not involve a period of geographical separation






38. The environmental factors that favour certain phenotypes






39. Trait evolves overtime; NO common ancestry






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






41. A codon is made of...






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






43. Mutation where an extra base is added






44. Features that are superficially similar but have different modes of development






45. A nucleotide of RNA is made of...






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






47. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele






48. Cross where you cross unknown genotype with a recessive






49. Independent segregation of genes during the formation of gametes






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