Which of the following is an example of a heterozygous genotype?
  • TT
  • CC
  • Tt
  • Tc
Alleles are different forms of the same...
  • allele
  • gene
  • code
  • egg
What does homozygous mean?
  • That the alleles are the same
  • That the alleles are different
  • That the alleles are varied
  • That the alleles are mutated
'Tall' is an example of which of the following?
  • A genotype
  • An allele
  • A gene
  • A phenotype
Which word describes TT?
  • Heterozygous
  • Heterogametic
  • Homozygous
  • Homogametic
Which word describes Tt?
  • Heterozygous
  • Homozygous
  • Heterogametic
  • Homogametic
What is the ratio of Tall:short if Tt is crossed with tt? Use a genetic diagram to predict the outcome.
  • 2:1
  • 3:1
  • 4:1
  • 1:1
Genotype describes which of the following?
  • All alleles present in a population
  • One allele
  • Alleles present in a single organism, for a particular feature
  • Four genes
Using a Punnett square, predict the ratio of tall to short when Tt is crossed with Tt. The allele for tall is T and the allele for short is t.
  • 2:1
  • 4:1
  • 3:1
  • 1:1
Phenotype is the expression of what?
  • The face
  • The genotype
  • The eyes
  • The zygote
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