Test your basic knowledge |

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. Group of similar organisms that can breed and produce fertile offspring






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






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






4. One of the identical rods of a chromosome.






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






6. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies






7. The specific location of a gene on a chromosome






8. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures






9. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






11. Recognize and cut DNA at specific sequences usually palindromes






12. Separates DNA by size






13. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.






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






15. 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






16. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next






17. Inherited feature that tends to prevent species from interbreeding with other species






18. Copying the code from DNA onto mRNA






19. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest






20. The structure on a tRNA molecule that allows it interact with an mRNA molecule






21. Any agent that can cause a change in DNA






22. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.






23. Transcrition occurs in the...






24. Building block of a protein






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






26. Independent segregation of genes during the formation of gametes






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






28. Different alleles for a gene






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






30. 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.






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






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






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






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






35. Change in a DNA sequence that affects genetic information






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






37. Speciation preceded by a period of geographical isolation






38. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene






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. Periods of rapid evolution punctuated by periods of little change






41. The complete genetic material contained in an individual






42. A trait that masks the expression of another trait






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






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






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






46. 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






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






48. Embryos of similar organisms have very similar early development indicating similar DNA at work






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






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