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DNA, RNA, and fossil records, comparative anatomy, and genetic information provide evidence for evolution. EXAM – Questions and Answers

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  1. The process by which the information in DNA is copied into messenger RNA for protein production. *
  2. An enzyme the breaks the bond between DNA nitrogenous bases. HELICASE
  3. An enzyme that binds complementary nucleotides during replication. DNA POLYMERASE
  4. The process of converting the information in mRNA into a sequence of amino acids that make a protein.  TRANSLATION
  5. An enzyme binds and opens the DNA molecule that will be transcribed.  RNA POLYMERASE
  6. A sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis.  CODON
  7. Building blocks of protein. AMINO ACIDS
  8. Sugar of RNA. RIBOSE
  9. Site of protein synthesis inside the cell.  RIBOSOMES
  10. A substance that can hasten or speed up any kind of chemical reactions.  CATALYST
  11. Sugar of DNA .  DEOXYRIBOSE
  12. A nucleic acid which is the template of information to make proteins.    MRNA
  13. A nuclei acid that holds tightly into the mRNA using its information to assemble the amino acids in correct order.  TRNA
  14. A mutation wherein it involves the breakage of a chromosome in two places in w/c the resulting piece of DNA is reversed and re-inserted into the chromosome.  INVERSION
  15. It refers to the loss of a segment of DNA or chromosome.  DELETION
  16. It occurs when a piece of chromosome breaks off and attached to another chromosome.  TRANSLOCATION
  17. A relatively permanently change in hereditary material that involves either a change in chromosome structure or number or a change in the nucleotide sequence of gene’s codons.  MUTATION
  18. The trisomy 18.  EDWARD’S SYNDROME
  19. The XXY aberration.  KLINEFELTER’S SYNDROME
  20. Caused by the deletion of part of the short arm of chromosome 5.    CRI DU CHAT
  21. The terminal 11q deletion disorder.  JACOBSEN SYNDROME
  22. The monosomy X.  TURNER SYNDROME
  23. Species change over time.  EVOLUTION
  24. Structures in different organisms that are similar in function but different in origin.  ANALOGOUS
  25. Parts of different organism that are similar in structure but serve different functions.  HOMOLOGOUS
  26. The codon has its complement anticodon in tRNA.  TRUE
  27. Each amino acid that will form the protein molecule to be synthesized is determined by the anticodon on the tRNA.    TRUE
  28. As translation begins, mRNA binds to a ribosome.  FALSE
  29. The sequence of anticodons in the tRNA determines the sequence of amino acids in the protein.   TRUE
  30. When DNA replicates, two identical copies of DNA molecules are produced, which are exactly the same as the original.  TRUE
  31. Chromosomes are segments of DNA that may code for RNA or proteins.  FALSE
  32. Mutations in non-sex (somatic) cells are not hereditary.  TRUE
  33. Mutations in eggs or sperms may not affect future generations by transmitting these changes in the offspring.  TRUE
  34. In inversion, the original structure of the chromosome broke apart and attached it to another chromosome.    FALSE
  35. In translocation, the original structure of the chromosome broke a part, reversed and reinserted it into another chromosome. FALSE
  36. Organisms inhabiting the earth have changed overtime, their structures, traits and abilities allowed them to adapt and survive in their environment. TRUE
  37. Compression are shallow external molds left by animal or plant tissues w/ more organic material.    TRUE
  38. Imprints are shallow external molds left by animal or plant tissues w/ little or no organic materials present.  FALSE
  39. The lesser the similarity in amino acid sequence, the closer the relationship of the organisms.  FALSE
  40. The organisms w/c are similar in structure & also possess similarity at the biochemical level could probably have a common ancestor.  TRUE


(I am not sure for some of my answers, so please comment your answer below if you know it Please…..)

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