Genetics And Punnett Squares Quiz (3)

10 Questions | Total Attempts: 4138

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Genetics And Punnett Squares Quiz (3) - Quiz

Our lesson is on punnett squares. You have learned about dominant and recessive traits and modes of inheritance.


Questions and Answers
  • 1. 
    A heterozygous tall pea plant is crossed with a short plant. Tall (T) is dominant to short (t) plants. The probability that the offspring plant will be tall is:
    • A. 

      75%

    • B. 

      25%

    • C. 

      50%

    • D. 

      100%

  • 2. 
    Brown (B) is dominant over white (b) in foxes. A homozygous brown fox is crossed with a white fox. The probability that the fox offspring will be white?
    • A. 

      0

    • B. 

      25

    • C. 

      50

    • D. 

      100

  • 3. 
    A cross of a white chick (WW) with a black chick (BB) produces all speckled offspring (WB) This type of inhetitance is known as:
    • A. 

      Incomplete dominance

    • B. 

      Polygenic inheritance

    • C. 

      Codominance

    • D. 

      Multiple alleles

  • 4. 
    What plants have Homozygous genotypes?
    • A. 

      TT only

    • B. 

      Tt

    • C. 

      Both TT and tt

    • D. 

      Tt only

  • 5. 
    If you cross a red plant with a white plant and the offspring is pink, what is that called?
    • A. 

      Incompete dominance

    • B. 

      Polygenic inheritance

    • C. 

      Codominance

    • D. 

      Multiple alleles

  • 6. 
    In cats, yellow fur is dominant over white fur. A heterozygous cat is mated with a white cat. The genotypes of offspring that could occur are:
    • A. 

      YY and Yy

    • B. 

      Yy

    • C. 

      Yy and yy

    • D. 

      YY, Yy, and yy

  • 7. 
    Which of the following means having more than 2 versions of alleles for genes?
    • A. 

      Polygenic inheritence

    • B. 

      Multiple alleles

    • C. 

      Incomplete dominance

    • D. 

      Codominance

  • 8. 
    Organisms that have two identical alleles for a particular trait are said to be
    • A. 

      Homozygous

    • B. 

      Dominant

    • C. 

      Hybrid

    • D. 

      Heterozygous

  • 9. 
    Blood is determined by individual combinations of the following gene varieties.IA,IB,and i . When IA and IB exist together, they make blood type AB (which has 2 dominant genes). This shows us that blood type is an example of.
    • A. 

      Polygenic Traits

    • B. 

      Multiple Alleles

    • C. 

      Incomplete Dominance

    • D. 

      Co-Dominance

  • 10. 
    This pedigree shows the inheritance of a trait thorugh generations. The trait described here is known as:
    • A. 

      Polygenic traits

    • B. 

      Multiple alleles

    • C. 

      Incomplete domninance

    • D. 

      Codominance