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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. Process by which a ribosome uses the code on mRNA to make proteins






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






3. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration






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






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






6. Gradual evolution within a lineage






7. When competition causes two closely related species to become more different in regions where their ranges overlap






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






9. Which structure contains anticodons






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






11. The specific location of a gene on a chromosome






12. Copying the code from DNA onto mRNA






13. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.






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






15. Mating of 2 oism that differ in 2 characters






16. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids






17. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area






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






19. Another term for pure breeding






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






21. The comparison of the structures of different organisms






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






23. DNA is made of...






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






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






26. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.






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






28. T or F a codon consist of three nucleotides






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






30. Organ that serves no useful function in an organism






31. Different alleles for a gene






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






33. Independent segregation of genes during the formation of gametes






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






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






36. A body cell






37. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)






38. Because of base pairing in DNA the amount of






39. 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






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






41. Proteins are made of...






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






43. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value






44. Is the evolutionary process whereby a population becomes better suited to its habitat






45. Selection for the ability to obtain a mate






46. Evolution resulting from small specific genetic changes that can lead to a new subspecies






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






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






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






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