Quiz  /  Genetics Class 12 MCQ Questions With Answers

  • 1. 
    Grey (G) fur is dominant to brown (g) fur in mice. What would be the genotype of a mouse that is homozygous dominant?

  • GG
  • Gg
  • gg
  • GGG

  • 2. 
    The genetic makeup of an organism. Example BB

  • genotype
  • phenotype
  • Dominant
  • Recessive

  • 3. 
    Having two different allele forms for a particular gene. Ex. Aa

  • Heterozygous
  • Homozygous
  • Dominant
  • Recessive

  • 4. 
    What is AA

  • Homozygous Dominant
  • Heterozygous
  • Homozygous Recessive
  • Heterozygous dominant

  • 5. 
    The passing of genetic traits from parent to offspring.

  • heredity
  • trait
  • gene
  • allele

  • 6. 
    What law states that in Tt the person will only show the dominant allele

  • law of segregation
  • law of independent assortment
  • law of dominance
  • law of punnett squares

  • 7. 
    Having two different genes for a trait (sometimes called hybrid).

  • protein
  • homozygous
  • heterozygous
  • genotype

  • 8. 
    The man who studied genetics and came up with genetics is

  • Watson
  • Crick
  • Mendel
  • Darwin

  • 9. 
    Genotype refers to the ...

  • physical expression of the genes
  • the possible combination of alleles in a gene
  • whether an allele is dominant or recessive
  • how an organism will appear

  • 10. 
    An allele whose trait only shows up when no dominant allele is present.

  • hidden allele
  • dominant allele
  • recessive allele
  • present allele

  • 11. 
    Who was Gregor Mendel?

  • Father of genetics
  • Father of cells
  • Coined the term heredity
  • No one

  • 12. 
    If Mom is type A, and Dad is type AB, can their kid be type o?

  • Yes
  • No

  • 13. 
    Having two of the same genes for the trait (sometimes called purebred).

  • homozygous
  • hetrozygous
  • protein
  • chromosome

  • 14. 
    Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?

  • 50% tall and 50% short
  • 75%tall and 25% short
  • 100%short
  • None of these

  • 15. 
    Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?

  • height
  • the scar
  • ability to swim
  • ability to play drums

  • 16. 
    True or False: Human cells have a diploid number of 40

  • true
  • false

  • 17. 
    True or False: Mendel used pea plants because they grow quickly and have distinctly different colored flowers.

  • true
  • false

  • 18. 
    What is a phenotype

  • The genetic make up (code)
  • The physical trait

  • 19. 
    A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

  • 100% BB
  • 75% BB and 25%Bb
  • 50 % BB and 50% Bb
  • 50% Bb and 50% bb

  • 20. 
    True or False: You can be blood type AB because A and B are co-dominant

  • true
  • false

  • 21. 
    W=white hairw= non-white hairIf you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?

  • none
  • 3/4
  • 1/2
  • all
Report Question
warning
access_time
  Time