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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. 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






2. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.






3. Gene

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






5. A change in the base sequence of a gene






6. DNA that is coiled around proteins






7. The final product of transcription is...






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






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






10. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome






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






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






13. 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






14. The evolutionary process by which a species becomes better suited to its niche.






15. A change or error in the DNA sequence






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






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






18. Movement of alleles into or out of a population due to the migration of individuals to or from the population






19. Another name for a gene






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






21. 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






22. A codon is made of...






23. Organ that serves no useful function in an organism






24. Cross where you cross unknown genotype with a recessive






25. Change to a chromosome in which part of the chromosome is repeated






26. Innate trait; shared ancestry






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






28. Genes contain instructions for assembling






29. All the factors in an organism's surroundings that can potentially affect it






30. Change in a DNA sequence that affects genetic information






31. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.






32. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.






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






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






35. Determined the concept of complementary base pairing






36. A population partially isolated from other populations of the same species






37. Speciation preceded by a period of geographical isolation






38. DNA is made of...






39. Even if the gametes of the two species meet - fertilization does not occur






40. Independent segregation of genes during the formation of gametes






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






42. Process by which an organism is slowly turned to stone as the body is replaced by minerals.






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






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






45. 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






46. An ancestor that two or more descendants have in common






47. Pea plants






48. Which structure contains anticodons






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






50. Translation occurs in the...