Le Hw4.4.1

10 Questions

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Le Hw4.4.1

These questions deal with mitosis, meiosis, and crossing over. Answer accordingly. REMEMBER: PERIOD# followed by FIRST & LAST NAME.


Questions and Answers
  • 1. 
    Some cells involved in the process of reproduction are represented in the diagram below.  The process of meiosis formed    
    • A. 

      Cell 1, only

    • B. 

      Cells 1 and 2

    • C. 

      Cell 3, only

    • D. 

      Cells 2 and 3

  • 2. 
    Which diagram best represents the relative locations of the structures in the list below? A–chromosome B–nucleus C–cell D–gene 
    • A. 
    • B. 
    • C. 
    • D. 
  • 3. 
    The diagram below represents a process involved in reproduction in some organisms.  This process is considered a mechanism of evolution because 
    • A. 

      Mitosis produces new combinations of inheritable traits

    • B. 

      It increases the chances of DNA alterations in the parent

    • C. 

      It is a source of variation in the offspring produced

    • D. 

      Meiosis prevents recombination of lethal mutations

  • 4. 
    A mutation that can be inherited by offspring would result from 
    • A. 

      Random breakage of chromosomes in the nucleus of liver cells

    • B. 

      A base substitution in gametes during meiosis

    • C. 

      Abnormal lung cells produced by toxins in smoke

    • D. 

      Ultraviolet radiation damage to skin cells

  • 5. 
    The sorting and recombining of genes during meiosis and fertilization usually leads to the production of 
    • A. 

      Gametes with many copies of the same chromosome

    • B. 

      Embryos with traits identical to those of all other members of the species

    • C. 

      Zygotes with the genetic information to produce only females

    • D. 

      Offspring with some traits that did not appear in their parents

  • 6. 
    • A. 

      Why some offspring are genetically identical to their parents

    • B. 

      The process of differentiation in offspring

    • C. 

      Why some offspring physically resemble their parents

    • D. 

      The origin of new combinations of traits in offspring

  • 7. 
    The bud shown in the diagram below was produced by asexual reproduction.  Which process is responsible for the formation of the bud? 
    • A. 

      Fertilization

    • B. 

      Recombination

    • C. 

      Mitosis

    • D. 

      Meiosis

  • 8. 
    The diagram below shows a process that can occur during meiosis. The most likely result of this process is 
    • A. 

      A new combination of inheritable traits that can appear in the offspring

    • B. 

      An inability to pass either of these chromosomes on to offspring

    • C. 

      A loss of genetic information that will produce a genetic disorder in the offspring

    • D. 

      An increase in the chromosome number of the organism in which this process occurs

  • 9. 
    During meiosis, crossing-over (gene exchange between chromosomes) may occur. Crossing- over usually results in
    • A. 

      Overproduction of gametes

    • B. 

      Fertilization and development

    • C. 

      The formation of identical offspring

    • D. 

      Variation within the species

  • 10. 
    A sudden change in the DNA of a chromosome can usually be passed on to future generations if the change occurs in a
    • A. 

      Skin cell

    • B. 

      Sex cell

    • C. 

      Liver cell

    • D. 

      Brain cell