Bacteria In Human Body

21 Questions | Total Attempts: 49

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Bacteria Quizzes & Trivia

First part of chapter 10


Questions and Answers
  • 1. 
    Bacteria and cyanobacteria  cells divide by:
    • A. 

      Meiosis

    • B. 

      Binary fission

    • C. 

      Mitosis

  • 2. 
    This is the complex combination of DNA and protein that makes up chromosomes. It is found inside the nuclei of eukaryotic cells, and within the nucleoid in prokaryotic cells.
  • 3. 
    A prokaryotic chromosome is
    • A. 

      Not a real thing

    • B. 

      In a eukaryotic cell

    • C. 

      A eukaryotic cell

    • D. 

      Single DNA molecule

  • 4. 
    Binary fission creates two daughter cells that are genetically
    • A. 

      Different as night and day

    • B. 

      One part of each parent cell

    • C. 

      Identical

  • 5. 
    This is how mitochondria and chloroplasts divide inside eukaryotic cells
    • A. 

      Mitosis

    • B. 

      Meiosis

    • C. 

      Binary fission

    • D. 

      Cutting the rug

    • E. 

      A pair of scissors

  • 6. 
    Every species has a different number of chromosomes
    • A. 

      True

    • B. 

      False

  • 7. 
    Prokaryotic cells replicate
    • A. 

      Unilaterally

    • B. 

      Bidirectional

    • C. 

      To the right

    • D. 

      To the left

  • 8. 
    Chromosomes are composed of
    • A. 

      Chromatin

    • B. 

      Acids

    • C. 

      Bases

  • 9. 
    A cell that lacks a membrane bound nucleus is:
    • A. 

      A prokaryotic cell

    • B. 

      A eukaryotic cell

    • C. 

      A blue light sale

  • 10. 
    Humans have __ chromosomes.
    • A. 

      46

    • B. 

      23

    • C. 

      31.5

    • D. 

      211

  • 11. 
    The functions of chromatin are:
    • A. 

      To package DNA into a smaller volume to fit in the cell

    • B. 

      To strengthen the DNA to allow mitosis and meiosis

    • C. 

      To serve as a mechanism to control expression and DNA replication

    • D. 

      To serve as a stop codon for transcription

  • 12. 
    This contains genetic material-instructions to direct cell functions.
  • 13. 
    Tightly packed form of DNA
  • 14. 
    Lightly packed form of chromatin that is rich in gene concentration, and is often (but not always) under active transcription
    • A. 

      Heterochromatin

    • B. 

      DNA

    • C. 

      Euchromatin

  • 15. 
    This is found in both eukaryotes and prokaryotes
    • A. 

      Heterochromatin

    • B. 

      Euchromatin

  • 16. 
    The transcribed regions of euchromatin are
    • A. 

      Genes

    • B. 

      MRNA

    • C. 

      DNA

  • 17. 
    These form the fundamental repeating units of eukaryotic chromatin
    • A. 

      Messenger Proteins

    • B. 

      Ribonucleotides

    • C. 

      Nucleosomes

  • 18. 
    DNA is wrapped around a core of what?
    • A. 

      Bases

    • B. 

      Histoproteins

    • C. 

      Lacto proteins

  • 19. 
    A three dimensional coil held in place by scaffold proteins
  • 20. 
    Having two versions of each chromosome
    • A. 

      Haploid

    • B. 

      Diploid

    • C. 

      Triploid

  • 21. 
    Homologous chromosomes have similar
    • A. 

      Alleles

    • B. 

      Cohesin

    • C. 

      Properties