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. Nucleic acids are deleted or inserted into the genome sequence (lethal)






2. Location of genes on DNA






3. Basic unit of heredity






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






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






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






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






8. Genetic makeup of an individual






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






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






11. Can be altered under certain conditions - altering the corresponding characteristics in the organism






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






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






14. Consists of structural genes






15. 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)






16. Progeny phenotypes are apparently blends of the parental phenotypes






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






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






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






20. Either the failure of homologous chromosomes to separate properly during meiosis I or the failure of sister chromatids to separate properly during meiosis II -zygote might either have 3 copies of that chromosome (trisomy) or just a single copy (monos






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






22. Brings amino acids to the ribosomes in the correct sequence for polypeptide synthesis -recognizes both the amino acid and the mRNA codon






23. Organisms that contain two copies of the same allele






24. Where protein synthesis occurs






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






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






27. One mRNA strand codes for one polypeptide






28. Adenine and guanine






29. Carries the complement of a DNA sequence and transports it from the nucleus to the ribosomes -assembled from ribonucleotides that are complementary to the 'sense' strand of the DNA -monocistronic






30. 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






31. 1) Genes exist in alternative forms. A gene controls a specific trait in an organism. 2) An organism has two alleles for each inherited trait - one inherited from each parent 3) The two alleles segregate during meiosis - resulting in gametes that car

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


32. Base sequence of mRNA is translated as a series of triplets






33. Physical manifestation of the genetic makeup






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






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






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






37. Cell burst






38. Individuals being crossed






39. 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






40. 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






41. 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






42. New codon may code for the same amino acid






43. An organism with a dominant phenotype of unknown genotype (Ax) is crossed with a phenotypically recessive organism






44. Organisms that carry two different alleles






45. One way of predicting the genotypes expected form a cross -genotypes are determined by looking at the intersections of the grid -indicates all potential progeny genotypes and the relative frequencies of the different genotypes and phenotypes can be e






46. 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


47. Small circular rings of DNA which contain accessory genes






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






49. Expressed allele -usually assigned capital letters






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







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