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. Synthesized discontinuously in the 5'->3' direction (since DNA polymerase synthesizes only in that direction) as a series Okazaki fragments






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






3. Consists of structural genes






4. Organisms that contain two copies of the same allele






5. 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






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






7. 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


8. Small circular rings of DNA which contain accessory genes






9. Pairs of homologues in sexually differentiated species






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






11. Initiation - elongation - and termination






12. Language of DNA consists of four letters: A -T -C -G -language of proteins consists of 20 'words': 20 amino acids -universal for almost all organism






13. 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






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






15. Process whereby mRNA codons are translated intoa sequence of amino acids -occurs in cytoplasm and involves tRNA - ribosomes - mRNA - amino acids - enzymes - and other proteins






16. Each new daughter helix contains an intact strand from the parent helix and a newly synthesized strand






17. Bacteriophages that replicate by the lytic cycle - killing their host cells






18. Include incomplete dominance - and codominance






19. Complementary to one of the mRNA codons






20. Physical manifestation of the genetic makeup






21. On amino acid which has an active site that binds to both the amino acid and its corresponding tRNA - ctalyzing their attachment to form an aminoacyl-tRNA complex






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






23. Occurs when linked genes are separated






24. May be found on the plasmids and transferred into recipient cells along with these factors






25. Location of genes on DNA






26. Adenine and guanine






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






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






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






30. Alternative forms of genes when it exists in more than one form






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






32. Formed between the amino acid attached to the tRNA in the A site and the fmet attached to the tRNA in the P site






33. 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


34. Consists of a single circular chromosome located in the nucleoid region of the cell






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






36. One mRNA strand codes for one polypeptide






37. May occur spontaneously or be induced by environmental factors






38. 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






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






40. Developed the basic principles of genetics through his experiments with the garden pea






41. 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






42. 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)






43. Phage DNA takes control of the bacterium's genetic machinery and manufactures numerous progeny - causing the cell to lyse - releasing new virions - each capable of infecting other bacteria -if initial infection takes place on a bacterial lawn - then






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






45. The study of how traits are inherited from one generation to the next






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






47. Ribonucleic acid -polynucleotide structurally similar to DNA except that its sugar is ribose -contains uracil instead of thymine -usually single stranded -found in both nucleus and cytoplasm -several types are involved with mRNA - tRNA - and rRNA






48. TRNA binding site for ribosomes to attach to the growing polypeptide chain (peace out site)






49. Double stranded DNA molecule unwinds and separates into two single strands






50. Can often affect the expression of a gene -interaction betwen the enironment and the genotype produces the phenotype







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