Test your basic knowledge |

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






2. Because of base pairing in DNA the amount of






3. Innate trait; shared ancestry






4. The movement of individuals into an area






5. Movement of alleles into or out of a population due to the migration of individuals to or from the population






6. When F1 is fully fertile but F2 has low fertility (rice - cotton)






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






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






9. Mutation where an extra base is added






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






11. Separates DNA by size






12. 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.






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






14. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.






15. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.






16. A change in the base sequence of DNA; the ultimate source of new alleles






17. Situation in which allele frequencies remain constant






18. 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.






19. 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






20. What happens during the process of translation






21. All the factors in an organism's surroundings that can potentially affect it






22. The adaptive increase in pigmentation as a result of human - induced pollutants






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






24. The environmental factors that favour certain phenotypes






25. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell






26. Speciation which does not involve a period of geographical separation






27. Visual expression of a trait






28. The formation of new species as a result of evolution






29. A population partially isolated from other populations of the same species






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






31. Mating of 2 oism that differ in 2 characters






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






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






34. Organ that serves no useful function in an organism






35. Dna moves during electrophoresis because of...






36. Building block of a protein






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






38. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


39. Large - scale evolutionary changes that take place over long periods of time






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






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






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






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






44. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA






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






46. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.






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






48. Copying the code from DNA onto mRNA






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






50. Name for oism with one dominant and one recessive allele