Test your basic knowledge |

PCAT Biology Genetics

Subjects : pcat, biology
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 process whereby information coded in the base sequence of DNA is transcribed into a strand of mRNA that leaves the nucleus through nuclear pores. the remaining events of protein synthesis occur in the cytoplasm






2. Dominant allele is expressed in the phenotype

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


3. Basic unit of DNA - which is composed of deoxyribose (a sugar) bonded to both a phosphate group and a nitrogenous base -bases: purines and pyrimidines






4. Progeny phenotypes are apparently blends of the parental phenotypes






5. May infect other bacteria and introduce new genetic arrangements through recombination with the new host cell's DNA






6. Changes in the genetic information of a cell coded in the DNA -if occured in the somatic cells - it can lead to tumors in an individual






7. Occurs when linked genes are separated






8. Complex that can't bind to the operator - thus permitting transcription






9. Nitrogen bases are added - deleted - or substituted - thus crating different genes; inappropriate amino acids may be inserted into polypeptide chains - and a mutated protein may be produced






10. Composed of two subunits (consisting of proteins and rRNA) - one large and one small - that bind together only during protein synthesis -have 3 binding sites (for mRNA and two tRNA)






11. New codon may code for a different amino acid






12. Structural component of ribsomes and is the most abundant of all RNA types -synthesized in the nucleolus






13. Genes on the same chromosome will stay together unless crossing over occurs -crossing over exchanges information between chromosomes and may break the linkage of certain patterns

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


14. Where protein synthesis occurs






15. Hydrogen bonds form between the mRNA codon in the A site and its complementary anticodon on the incoming aminoacyl-tRNA complex






16. Include incomplete dominance - and codominance






17. System where the repressor binds to the operator - forming a barrier that prevents RNA polymerase from transcribing the structural genes






18. New codon may be a stop codon






19. Complementary to one of the mRNA codons






20. Pairs of homologues in sexually differentiated species






21. DNA language must be translated by mRNA in such a way as to produce the 20 words in the amino acid language






22. Induce mutations -include cosmic rays - X rays - UV rays - and radioactivity






23. Reproduction of bacterial cells and proliferate very rapidly under favorable conditions -asexual prcoess -3 kinds (transformation - conjugation and transduction)






24. Genes that are located on the X or Y chromosome -in humans - most are located on the X






25. (UAA - UAG - or UGA) terminates polypeptide synthesis






26. Structure formed when many ribosomes simultaneously translate a single mRNA molecule






27. Chromosome fragment






28. Daughter strand that is continuously synthesized by DNA polymerase in the 5'->3' direction






29. Transfer of genetic material between two bacteria that re temporarily joined






30. Virus that infcts its host bacterium by attaching to it - boring a hole through the bacterial cell wall - and injecting its DNA while its protein coat remains attached to the cell wall and enters the host in either a lytic cycle or a lysogenic cycle






31. Codes for the synthesis of a repressor molecule that binds to the operator and blocks RNA polymerase form transcribing the structural genes






32. Begins at a unique origin of and proceeds in both directions simultaneously






33. The parents differ in two traits - as long as the genes are on separate chromosomes and assort independently during meiosis






34. Regulation of gene expression and enables prokaryotes to control their metabolism






35. The sequence of nontranscribable DNA that is the repressor binding site






36. Only one trait is being studied in this particular mating






37. Binds to the incoming aminoacyl-tRNA complex (Arriving site)






38. Occurs when fragments of the bacterial chromosome accidentally become packaged into viral progeny produced during a viral infection






39. The ribosome advances three nucleotides along the mRNA in the 5' to 3' direction and the uncharged tRNA from the P site is expelled - and the peptidyl-tRNA from the A site moves into the P site and completes the cycle






40. May occur spontaneously or be induced by environmental factors






41. Short segments from lagging strand






42. True-breeding individuals (which - if self-crossed - produce progeny only with the parental phenotype) with different traits - mated them - and statistically analyzed the inheritance of the traits in the progeny






43. Each strand of DNA that is a template in the synthesis of two new daughter helices






44. The process by which a foreign plasmid is incorporated into the bacterial chromosome via recombination - creating new inheritable genetic combinations






45. Self replication ensures that its coded sequence will be passed on to successive generations






46. Deoxyribonucleic acid -contains information coded in the sequence of its base pairs - provding the cell with a blueprint for protein synthesis -regulate all life functions -has the ability to self replicate -basis of heredity -mutable






47. Sugar-phosphate chains on the outside of the helix and the bases on the inside -C-G - T-A -AKA Watson Crick DNA model






48. Degeneracy/redundancy of the genetic code since there are 64 different codons and only 20 amino acids






49. (AUG) ribosome scans the mRNA until it bonds to this (methionine) and UAC on anticodon of tRNA






50. Plasmids that are capable of integration into the bacterial genome







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests