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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 concept of complementary base pairing






2. Mutation where an extra base is added






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






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






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






7. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance






8. T or F If a nucleic acid contain uracil it is DNA






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






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






11. Are noncoding sequences in the gene that are removed from RNA after transcription






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






13. A nucleotide of RNA is made of...






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






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






16. Separation of species or populations so that they cannot interbreed and produce fertile offspring






17. The environmental factors that favour certain phenotypes






18. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats






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






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






21. Hybrid is sterile so biologically unfit






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






23. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.






24. The evolutionary history/geneology of a group of organisms (a tree thingy)






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






26. 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.






27. Trait evolves overtime; NO common ancestry






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






29. A change or error in the DNA sequence






30. 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.






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






32. Consists of all genes - including all the different alleles - that are present in a population






33. Separates DNA by size






34. Movement of organisms ro of from a population






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






36. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long






37. Predicts the possible outcome of a genetic cross.






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






39. A pairing where the parent plants differ in only one character.






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






41. Proteins are made of...






42. Cross where you cross unknown genotype with a recessive






43. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other






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






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






46. Determined the complete double helical structure of DNA






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






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






49. 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






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