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






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






3. The movement of individuals into an area






4. Organ that serves no useful function in an organism






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






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






7. Genes contain instructions for assembling






8. Visual expression of a trait






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






10. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.






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






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






13. Trait where heterozygous is a blending of two alleles






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






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






16. A combining of genes or characters different from what they were in the parents






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






18. The backbone of DNA consist of...






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






20. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.






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






22. The final product of transcription is...






23. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)






24. A change or error in the DNA sequence






25. 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.






26. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.






27. Found only in that country






28. Ribosomes are made of...






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






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






31. 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






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






33. Gene

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


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






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






36. Independent segregation of genes during the formation of gametes






37. Cross where you cross unknown genotype with a recessive






38. Synonym for protein; chain of amino acids






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






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






41. 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


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






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






44. A codon is made of...






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






46. Gradual evolution within a lineage






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






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






49. During transcription an RNA molecule is formed






50. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants