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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. Change in allele frequencies as a result of the migration of a small subgroup of a population






2. The specific location of a gene on a chromosome






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






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






5. Mating of 2 oism that differ in 2 characters






6. Transfer RNA; type of RNA that carries amino acids to the ribosome






7. Is active during transcription






8. What does DNA stand for...






9. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell






10. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.






11. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.






12. Actual remains of an organism such as bones - teeth - shells - etc.






13. Identical alleles for a gene






14. 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.






15. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles






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






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






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






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






20. 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






21. A nucleotide of RNA is made of...






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






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






24. A body cell






25. Building block of a protein






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






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






28. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y






29. Genes contain instructions for assembling






30. Speciation preceded by a period of geographical isolation






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






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






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






34. Translation occurs in the...






35. Movement of organisms ro of from a population






36. Synonym for protein; chain of amino acids






37. Trait evolves overtime; NO common ancestry






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






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






40. T or F a codon consist of three nucleotides






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






42. A change or error in the DNA sequence






43. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor






44. 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






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






46. Chromosomes are collections of many






47. Another term for pure breeding






48. A change in the base sequence of a gene






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






50. A codon is made of...