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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. Selection for the ability to obtain a mate






2. Independent segregation of genes during the formation of gametes






3. DNA that is coiled around proteins






4. A unique combination of traits that are passed down from one generation to another.






5. Chromosomes are collections of many






6. The enzyme that binds to the promoter region of a gene during transcription is called...






7. Building block of a nucleic acid (DNA and RNA)






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






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






10. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells






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






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






13. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species






14. The region of the chromosome that holds the two sister chromatids together during mitosis






15. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor






16. Trait evolves overtime; NO common ancestry






17. The study of the structures of different organisms - looking at homologous parts






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






19. A codon is made of...






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






21. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.






22. Ribosomal RNA; type of RNA that makes up part of the ribosome






23. Found only in that country






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






25. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual






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






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






28. 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






29. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.






30. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.






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






32. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.






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






34. DNA is made of...






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






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






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






38. Synonym for protein; chain of amino acids






39. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles






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






41. Human - like species that existed millions of years ago as witnessed through fossil evidence.






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






43. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.






44. The type of environment in which an organism or group normally lives or occurs






45. 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






46. The backbone of DNA consist of...






47. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.






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






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






50. 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.