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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. Genes contain instructions for assembling






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






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






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






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






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






8. Periods of little adaptive change






9. Process by which a ribosome uses the code on mRNA to make proteins






10. The specific location of a gene on a chromosome






11. These prevent fertilization between species e.g. diff breeding season - mating behaviour






12. Cross where you cross unknown genotype with a recessive






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






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






15. 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.






16. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.






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






18. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.






19. A body cell






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






21. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats






22. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants






23. Another name for a gene






24. How often a form of a gene appears in a gene pool






25. The preserved remains or traces of an organism that lived in the past






26. Found only in that country






27. Synonym for protein; chain of amino acids






28. Selection for the ability to obtain a mate






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






30. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration






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






32. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups






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






34. Trait evolves overtime; NO common ancestry






35. Proteins are made of...






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






37. Trait where heterozygous is a blending of two alleles






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






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






40. Is active during transcription






41. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.






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






43. 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.






44. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids






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






46. Independent segregation of genes during the formation of gametes






47. 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






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






49. DNA that is coiled around proteins






50. Gene

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