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. Mating of 2 oism that differ in 2 characters






2. How many codons are needed to specify three amino acids






3. Movement of organisms ro of from a population






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






5. 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






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






7. Are noncoding sequences in the gene that are removed from RNA after transcription






8. Synonym for protein; chain of amino acids






9. Mutation where an extra base is added






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






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






12. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.






13. 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


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. 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






16. Process in which DNA is duplicated






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






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






19. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found






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






21. Genes contain instructions for assembling






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






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






24. The comparison of the structures of different organisms






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






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






27. Even if the gametes of the two species meet - fertilization does not occur






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






29. DNA that is coiled around proteins






30. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.






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






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






33. 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






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






35. Recognize and cut DNA at specific sequences usually palindromes






36. Form of reproductive isolation in which tere are differences in species courtship behavior






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






38. Proteins are made of...






39. The specific location of a gene on a chromosome






40. 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.






41. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful






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






43. The movement of individuals into an area






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






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






46. 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






47. 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.






48. Trait evolves overtime; NO common ancestry






49. Chromosomes are collections of many






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