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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. The specific location of a gene on a chromosome






2. The comparison of the structures of different organisms






3. The movement of genes between populations as a result of mating of migration






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






5. DNA is made of...






6. A base found in DNA (but not in RNA). This base pairs with Adenine.






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






8. Disappearance of a species from all parts of its geographical range






9. Is any chromosome that is not a sex chromosome.






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






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






12. What is one benefit for having two strands of DNA?






13. Another term for pure breeding






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






15. Change to a chromosome in which a fragment of the chromosome is removed






16. Is found in DNA






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






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






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






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






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






22. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil






23. Organ that serves no useful function in an organism






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






25. The banding pattern of a persons DNA after being cut and run on gel is called






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






27. One of the identical rods of a chromosome.






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






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






30. Pea plants






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






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






33. A geographic gradient in the extent to which a character is developed in a species






34. 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






35. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.






36. How often a particular gene occurs in the population






37. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies






38. 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.






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






40. The complete genetic material contained in an individual






41. The evolutionary process by which a species becomes better suited to its niche.






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






43. What happens during the process of translation






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






45. 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.






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






47. Situation in which allele frequencies remain constant






48. Another name for a gene






49. Cross where you cross unknown genotype with a recessive






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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