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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. Translation occurs in the...






2. 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.






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






4. Determined the complete double helical structure of DNA






5. Process in which DNA is duplicated






6. 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






7. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA






8. Movement of organisms ro of from a population






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






10. When zygote does not complete development or is physically weaker than normal






11. Breeding organisms with specific traits in order to produce offspring with identical traits






12. 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.






13. Another term for pure breeding






14. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number






15. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value






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






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






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






19. The study of the past and present distribution of species.






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






21. The final product of transcription is...






22. Different alleles for a gene






23. Group of similar organisms that can breed and produce fertile offspring






24. 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






25. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.






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






27. Determined the concept of complementary base pairing






28. Pea plants






29. A group of organisms of the same species occupying a given area.






30. Another name for a gene






31. Group of individuals of the same species that live in the same area






32. An ancestor that two or more descendants have in common






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






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






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






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






37. Change in a DNA sequence that affects genetic information






38. 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.






39. Predicts the possible outcome of a genetic cross.






40. DNA is made of...






41. Gradual evolution within a lineage






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






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






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






45. A change in the base sequence of a gene






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






47. Selection for the ability to obtain a mate






48. The comparison of the structures of different organisms






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






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