Genetics (2nd Block)

Which of the following shows homozygous dominant alleles?

• AA

• Aa

• aa

Which of the following shows homozygous recessive alleles?

• AA

• Aa

• aa

Which of the following shows heterozygous alleles?

• AA

• Aa

• aa

Which of the following letters is dominant?

• A

• a

• d

• t

Which of the following letters is recessive?

• A

• a

• D

• T

Which of the following shows a cross between two heterozygous parents?

• Aa X Aa

• aa X aa

• Aa X aa

• aa X AA

Which of the following shows a cross between a homozygous dominant parent and a heterozygous parent?

• AA X Aa

• aa X AA

• aa X Aa

• Aa X Aa

Which of the following shows a cross between two homozygous dominant parents?

• AA X Aa

• aa X aa

• AA X AA

• Aa X Aa

Which of the following shows a cross between two homozygous recessive parents?

• aa X AA

• Aa X Aa

• AA X AA

• aa X aa

T - tall and t = short. In the Punnett square below, what belongs in the missing square (a)  

• tt
• Tt
• Bb
• TT