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






2. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid






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






4. 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.






5. Translation occurs in the...






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






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






8. The final product of transcription is...






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






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






11. The evolutionary history/geneology of a group of organisms (a tree thingy)






12. Found only in that country






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






14. 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.






15. 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.






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






17. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.






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






19. Determined the concept of complementary base pairing






20. 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






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






22. Which structure contains anticodons






23. 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.






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






25. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

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26. 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.






27. Two alternative forms of a gene e.g Tall vs Short






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






29. Copying the code from DNA onto mRNA






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






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






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






33. A change or error in the DNA sequence






34. Proteins are made of...






35. 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.






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






37. One of the identical rods of a chromosome.






38. T or F a codon consist of three nucleotides






39. Another term for pure breeding






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






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






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






43. A trait that masks the expression of another trait






44. Which type of Rna functions as a blue print of the genetic code






45. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are






46. A body cell






47. The study relating the evolution of new charateristics to changes in the genes controlling development






48. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance






49. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with






50. Used x ray cyrstallography to create an image of DNA







Sorry!:) No result found.

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