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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. Different alleles for a gene






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






3. 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






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






5. 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






6. Natural selection that causes the frequency of a particular allele to move in one direction






7. Cross where you cross unknown genotype with a recessive






8. 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






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






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






11. Trait evolves overtime; NO common ancestry






12. Pea plants






13. Closely related species occupying different habitats - niches preventing them from interbreeding






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






15. Disappearance of a species from all parts of its geographical range






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






17. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.






18. Found only in that country






19. Because of base pairing in DNA the amount of






20. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks






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






22. A nucleotide of RNA is made of...






23. The final product of transcription is...






24. DNA that is coiled around proteins






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






26. The gradual changes in gene frequencies in a population due to random events






27. Three mRNA nucleotides that code for a specific amino acid






28. Copying the code from DNA onto mRNA






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






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






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






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






33. 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






34. How often a form of a gene appears in a gene pool






35. How often a particular gene occurs in the population






36. Recognize and cut DNA at specific sequences usually palindromes






37. Situation in which allele frequencies remain constant






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






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






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






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






42. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.






43. The signal on a mRNA molecule that designates the end of the coding sequence is called the...






44. Identical alleles for a gene






45. 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.






46. Gradual evolution within a lineage






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






48. What happens during the process of translation






49. Gene

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