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. Gradual evolution within a lineage






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






3. The specific location of a gene on a chromosome






4. 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.






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






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






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






8. 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






9. Gene

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


10. 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






11. 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






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






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






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






15. 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.






16. Pea plants






17. Periods of rapid evolution punctuated by periods of little change






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






19. Mating of 2 oism that differ in 2 characters






20. Cross where you cross unknown genotype with a recessive






21. Evolution of living things - based on evidence from the past and present.






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






23. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.






24. A trait that masks the expression of another trait






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






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






28. DNA is made of...






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






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






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






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






33. Movement of organisms ro of from a population






34. A DNA double helix is held together in the center by between nitrogenous bases






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






36. T or F A cloned organism has the same proteins as another organism






37. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.






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






39. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






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






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






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






43. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances






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






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






46. Determined the complete double helical structure of DNA






47. Nucleotides that control which amino acids are added during protein synthesis






48. A codon is made of...






49. The adaptive increase in pigmentation as a result of human - induced pollutants






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