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Chapter 8 Bio Quiz

33 Questions
Science Quizzes & Trivia
Questions and Answers
  • 1. 
     There are a number of differences between fission of a bacterium and human cell division. Which of the following is not one of them?
    • A. 

      A bacterium has only one chromosome

    • B. 

      Human cells undergo mitosis and cytokinesis

    • C. 

      Bacteria are smaller and simpler than human cells

    • D. 

      Bacteria have to duplicate their DNA before dividing; human cells do not

    • E. 

      Human chromosomes are larger and more complex

  • 2. 
    You would be unlikely to see which of the following human cells dividing?
    • A. 

      Muscle cell

    • B. 

      Skin cell

    • C. 

      Cancer cell

    • D. 

      Cell from an embryo

    • E. 

      Intestinal lining cell

  • 3. 
    Which of the following correctly matches a phase of the cell cycle with its description?
    • A. 

      M-replication of DNA

    • B. 

      S-immeadiately precedes cell

    • C. 

      G2-cell division

    • D. 

      G1- immeadiately follows cell division

    • E. 

      All of the above are correctly matched

  • 4. 
    In telophase of mitosis, the miotic spindle breaks down and nuclear membranes form. This is essentially the opposite of what happens in
    • A. 

      Prophase

    • B. 

      Interphase

    • C. 

      Metaphase

    • D. 

      S phase

    • E. 

      Anaphase

  • 5. 
    Sister Chromatids
    • A. 

      Cross over during prophase 1 of meiosis

    • B. 

      Seperate during the first meiotic division

    • C. 

      Are produced during s phase between cell division

    • D. 

      Cross over during prophase 2 of meiosis

    • E. 

      Are also called homologous chromosoes

  • 6. 
    Which of the following is not a function of miotic cell division in animals?
    • A. 

      Asexual reproduction growth

    • B. 

      Growth

    • C. 

      Repair of damaged organs

    • D. 

      Production of gametes

    • E. 

      Cell replacement

  • 7. 
    Meiosis .
    • A. 

      Is responsible for body growth and repair

    • B. 

      Halves the number of chromosomes in cells

    • C. 

      Is the process by which the body produces diploid cells

    • D. 

      Ollows mitosis and splits the cytoplasm into two

    • E. 

      Is important in asexual reproduction

  • 8. 
    Crossing over is . a)important in genetic recombination b)what makes a cell become cancerous c) a key process that occurs during mitosis d)an important mechanism of chromosome repair e) what prevents cells from multiplying indefinently in cell culture
    • A. 

      Important in genetic recombination

    • B. 

      What makes a cell become cancerous

    • C. 

      A key process that occurs during mitosis

    • D. 

      An important mechanism of chromosome repair

    • E. 

      What prevents cells from multiplying indefinently in cell culture

  • 9. 
    Human __ are diploid, and human __ are haploid .
    • A. 

      Sex chromosomes...autosomes

    • B. 

      Autosomes...sex chromosomes

    • C. 

      Somatic cells...gametes

    • D. 

      Gametes...somatic cells

    • E. 

      Chromosomes...chromatids

  • 10. 
    Which of the following does not lead to genetic variability? a)random fertilization . b)crossing over during meiosis c) division of chromosomes during anaphase of mitosis d) orientation of chromosomes during metaphase 1 of meiosis e) mutation
    • A. 

      Random fertilization

    • B. 

      Crossing over during meiosis

    • C. 

      Division of chromosomes during anaphase of mitosis

    • D. 

      Orientation of chromosomes during metaphase 1 of meiosis

    • E. 

      Mutation

  • 11. 
    Most cells will divide if they receive the proper signal at a checkpoint in the ___ phase of the cell cycle
    • A. 

      M

    • B. 

      G1

    • C. 

      S

    • D. 

      G2

    • E. 

      Cytokinesis

  • 12. 
    Geneticists suspect that the extra chromosome seen in Down syndrome usually comes from the egg, rather than the sperm, because
    • A. 

      Eggs are produced so rapidly that there is more chance or error

    • B. 

      Down syndrome is due to a dominant gene in women, a recessive gene in men

    • C. 

      Most women inherit down syndrome from their mothers

    • D. 

      Eggs are produced in much larger numbers than sperm

    • E. 

      Meiosis takes longer in the ovary, increasing the likelihood of error

  • 13. 
    Which of the following chromosomal alterations would you expect to have the most drastic consequences?
    • A. 

      Inversion

    • B. 

      Duplication

    • C. 

      Translocation

    • D. 

      Deletion

    • E. 

      A and b are equally the most serious

  • 14. 
    In certain fungae and algae, cells undergo mitosis repeatedly without subsequently undergoing cytokinesis. What would result from this? a)a decrease in chromosome number b)inability to duplicate DNA c) division of the organism into many cells, most lacking nuclei d)large cells containing many nuclei e)a rapid rate of sexual reproduction .
    • A. 

      A decrease in chromosome number

    • B. 

      Inability to duplicate DNA

    • C. 

      Division of the organism into many cells, most lacking nuclei

    • D. 

      Arge cells containing many nuclei

    • E. 

      A rapid rate of sexual reproduction

  • 15. 
    Which of the following is the most significant difference between mitosis and meiosis? a)chromosomes are duplicated before mitosis b)Meiosis is not followed by cytokinesis c) Homologous pairs of chromosomes are split up in meiosis . d) a spindle formed of microtubules moves the chromosomes in mitosis e)crossing over occurs in mitosis
    • A. 

      Chromosomes are duplicated before mitosis

    • B. 

      Meiosis is not followed by cytokinesis

    • C. 

      Homologous pairs of chromosomes are split up in meiosis

    • D. 

      A spindle formed of microtubules moves the chromosomes in mitosis

    • E. 

      Crossing over occurs in mitosis

  • 16. 
    If there are 22 chromosomes in the nucleus of a toad skin cell, a toad egg would contain __ chromosomes.
    • A. 

      22

    • B. 

      44

    • C. 

      11

    • D. 

      33

    • E. 

      88

  • 17. 
    Which of the following carry the same genetic information? . a)sister chromatids b)x and y chromosomes c)all autosomes d)homologous chromosomes e)all haploid cells
    • A. 

      Sister chromatids

    • B. 

      X and y chromosomes

    • C. 

      All autosomes

    • D. 

      Homologous chromosomes

    • E. 

      All haploid cells

  • 18. 
    A cell biologist carefully measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the G2 phase of the cell cycle contained 200 units of DNA. What would be the amount of DNA in one of the grasshopper daughter cells seen in telophase of mitosis? .
    • A. 

      50 units

    • B. 

      100 units

    • C. 

      Between 50 and 100 units

    • D. 

      200 units

    • E. 

      400 units

  • 19. 
    What would be the quantity of DNA in one of the grasshopper cells (question 6) produced by telophase 2 of meiosis? . a)50 units b)100 units c)between 50 and 100 units d)200 units e)400 units
    • A. 

      50 units

    • B. 

      100 units

    • C. 

      Between 50 and 100 units

    • D. 

      200 units

    • E. 

      400 units

  • 20. 
    The two chromosomes of a homologous pair a) carry identical genetic information at corresponding locations b) carry information for the same characteristics at different locations c) carry identical genetic information at different locations d) carry information for the same characteristics at corresponding locations e)any of the above is possible.
    • A. 

      Carry identical genetic information at corresponding locations

    • B. 

      carry information for the same characteristics at different locations

    • C. 

      Carry identical genetic information at different locations

    • D. 

      Carry information for the same characteristics at corresponding locations

    • E. 

      Any of the above is possible.

  • 21. 
    A picture of a dividing pigeon cell taken through a microscope shows that the cell contains 7 chromosomes, each consisting of 2 chromatids. This picture might have been taken during . a)metaphase of mitosis b)prophase i of meiosis c)telophase 2 of meiosis d)prophase 2 of meiosis e)telophase of mitosis
    • A. 

      Metaphase of mitosis

    • B. 

      Prophase i of meiosis

    • C. 

      Telophase 2 of meiosis

    • D. 

      Prophase 2 of meiosis

    • E. 

      Telophase of mitosis

  • 22. 
    A culture of mouse cells is treated with a chemical that interferes with the activity if microfilaments. Which of the following will probably be affected the most? a) mitosis b)chromosome duplication c)pairing of homologous chromosomes d) cytokinesis e) joining of sister chromatids at the centromere .
    • A. 

      Mitosis

    • B. 

      Chromosome duplication

    • C. 

      Pairing of homologous chromosomes

    • D. 

      Cytokinesis

    • E. 

      Joining of sister chromatids at the centromere

  • 23. 
    A zoologist examined an intestine cell from a crayfish and counted 200 chromosomes, each consisting of 2 chromatids, at prophase 1 of mitosis. What would he expect to see in each of the four cells at telophase 2 of meiosis if he looked in the crayfish ovary?
    • A. 

      50 chromosomes, each consisting of 2 chromatids

    • B. 

      50 chromosomes, each consisting of 1 chromatid

    • C. 

      100 chromosomes, each consisting of 2 chromatids

    • D. 

      100 chromosomes, each consisting of 1 chromatid

    • E. 

      200 chromosomes, each consisting of 1 chromatid

  • 24. 
    A karyotype would be least likely to show which of the following?
    • A. 

      An extra chromosome

    • B. 

      Part of a chromosome duplicated

    • C. 

      A missing chromosome

    • D. 

      Part of a chromosome turned around

    • E. 

      A translocation

  • 25. 
    If an intestinal cell in a grasshopper contains 24 chromosomes, a grasshopper sperm cell contains __ chromosome
    • A. 

      3

    • B. 

      6

    • C. 

      12

    • D. 

      24

    • E. 

      48

  • 26. 
    A biochemist meausred the amount of DNA in cells growing in the labratory and found that the quantity of DNA in a cell doubled
    • A. 

      Between prophase and anaphase in mitosis

    • B. 

      Between the g1 and g2 phases of the cell cycle

    • C. 

      During the m phase of the cell cycle

    • D. 

      Between prophase 1 and prophase 2 of meiosis

    • E. 

      Between anaphase and telophase of mitosis

  • 27. 
    Which of the following is not a function of mitosis in humans?
    • A. 

      Repair of wounds

    • B. 

      growth

    • C. 

      Production of gametes from diploid cells

    • D. 

      Replacement of lost or damaged cells

    • E. 

      Multiplication of somatic cells

  • 28. 
    A micrograph of a dividing cell from a mouse showed 19 chromosomes, each consisting of two sister chromatids. During which of the following stages of cell division could this picture have been taken?
    • A. 

      Prophase of mitosis

    • B. 

      Telophase 2 of meiosis

    • C. 

      Prophase 1 of meiosis

    • D. 

      Anaphase of mitosis

    • E. 

      Prophase 2 of meiosis

  • 29. 
    Cytochalisin B is a chemical that disrupts microfilaent formation. This chemical would interfere with
    • A. 

      DNA replication

    • B. 

      Formation of the miotic spindle

    • C. 

      Cleavage

    • D. 

      Formation of the cell plate

    • E. 

      Crossing over occurs in mitosis

  • 30. 
    It is difficult to observe individual chromosomes during interphase because
    • A. 

      The DNA has not been replicated yet

    • B. 

      Hey are in the form of long thin strands

    • C. 

      They leave the nucleus and are dispersed to other parts of the cell

    • D. 

      Homologous chromosomes do not pair up until division starts

    • E. 

      The spindle must move them to the metaphase plate before they become visible.

  • 31. 
    A fruit fly somatic cell contains 8 chromosomes. This means that _ different combinations of chromosomes are possible in its gametes .
    • A. 

      4

    • B. 

      8

    • C. 

      16

    • D. 

      32

    • E. 

      64

  • 32. 
    If a fragment of a chromosome breaks off and then reattaches to the original chromosome but in the reverse direction, the resulting chromosomal abnormality is called .
    • A. 

      A deletion

    • B. 

      An inversion

    • C. 

      A translocation

    • D. 

      A nondisjuncton

    • E. 

      A reciprocal translocation

  • 33. 
    Why are individuals with an extra chromosome 21, which causes down syndrome, more numerous than individuals with an extra chromosome 3 or chromosome 16? a) there are probably more genes on chromosome 21 than on the others b) chromosome 21 is a sex chromosome and chromosomes 3 and 16 are not c) down syndrome is not more common, just more serious d) extra copies of the chromosomes are probably fatal e) nondisjunction of chroosoe 21 probably occurs more frequently .
    • A. 

      There are probably more genes on chromosome 21 than on the others

    • B. 

      Chromosome 21 is a sex chromosome and chromosomes 3 and 16 are not

    • C. 

      Down syndrome is not more common, just more serious

    • D. 

      Extra copies of the chromosomes are probably fatal

    • E. 

      Nondisjunction of chromosome 21 probably occurs more frequently

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