Definition Of Genetics Quiz Questions

12 Questions | Total Attempts: 238

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Definition Of Genetics Quiz Questions

Please do your best because you will only get one chance to pass. If you do not pass this quiz you will have to come back to your seat and do the section review from your textbook.


Questions and Answers
  • 1. 
    A cross is made between two parents, both with genotype Aa. What is the probability that an offspring will have the genotype aa?
    • A. 

      1/4

    • B. 

      1/8

    • C. 

      1/2

  • 2. 
    In Guinea pigs, black hair is dominant over white hair. If a homozygous black guinea pig is crossed with a white guinea pig, the offspring will be:
    • A. 

      All white

    • B. 

      All black

    • C. 

      1/2 black and 1/2 white

  • 3. 
    A dominat trait is _____________________.
    • A. 

      Members of a gene pair that are different

    • B. 

      Physical appearance

    • C. 

      Expressed if present

  • 4. 
    A recessive trait is _______________________.
    • A. 

      Is masked by the dominant gene

    • B. 

      The letters used to indicate the presence of a gene

    • C. 

      Physical appearance

  • 5. 
    The genotype is ________________.
    • A. 

      Physical appearance

    • B. 

      The letters used to indicate the presence of a gene

    • C. 

      Masked by the dominant gene

  • 6. 
    Heterozygous is __________________.
    • A. 

      Members of a gene pair that are different

    • B. 

      Members of a gene pair that are the same.

    • C. 

      The upper case alleles

  • 7. 
    Homozygous is _____________.
    • A. 

      The lower case alleles

    • B. 

      Members of a gene pair that are the same

    • C. 

      Members of a gene pair that are different

  • 8. 
    This individual carries the recessive trait but it is not apparent.
    • A. 

      Homozygous dominant

    • B. 

      Homozygous recessive

    • C. 

      Heterozygous

  • 9. 
    What are the gametes of a parent with the genotype BbSs
    • A. 

      BB,BS,bs,Bs

    • B. 

      BS,Bs,bs,bs

    • C. 

      BS,Bs,bS,bs

  • 10. 
    In Mendel's garden peas, the tall allele (D) is dominant over the dwarf allele (d), and the green pod allele is dominant (Y) over the yellow pod allele (y). Using the symbols provided above, what is the genotype of a heterozygous tall, homozygous green pod pea plant?
    • A. 

      DdYy

    • B. 

      DDYy

    • C. 

      DdYY

  • 11. 
    What is the probability of a coin landing on tails four times in a row?
  • 12. 
    What is the probability of rolling a six sided die and it landing on 2?
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