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. An evolutionary 'branch' and its daughter 'twigs'






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






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






4. A mutation in which one nucleotide is replaced by another nucleotide






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






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






7. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry






8. 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.






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






10. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.






11. Any preserved remains of an organism from the past. Usually found in sedimentary rock.






12. Method of replication that implies that each new strand of DNA is half original and half new






13. Another name for a gene






14. Speciation preceded by a period of geographical isolation






15. Trait where heterozygous is a blending of two alleles






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






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






18. A trait that masks the expression of another trait






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






20. 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






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






22. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.






23. Gene

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


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






25. Proteins are made of...






26. DNA is made of...






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






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






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






30. Cross where you cross unknown genotype with a recessive






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






32. Synonym for protein; chain of amino acids






33. Form of reproductive isolation in which two populations reproduce at different times






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






35. Visual expression of a trait






36. The movement of genes between populations as a result of mating of migration






37. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele






38. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species






39. Found only in that country






40. Change in a DNA sequence that affects genetic information






41. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.






42. A limb with five digits (fingers)






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






44. A change in the base sequence of a gene






45. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.






46. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA






47. A nucleotide of RNA is made of...






48. Is active during transcription






49. Genes contain instructions for assembling






50. Predicts the possible outcome of a genetic cross.