Repaso de Science

BB is dominant o recessive?

• Dominant

• Recessive

Bb is dominant, heterozygous or recessive?

• Dominant

• Recessive

• Heterozygous

What is the probability of the offspring having a dominant genotype?

• 100%

• 25%

• 50%

• 75%

Answer explanation

BB = 25%

Bb= 25%

If one of the squares of the punnet square has one dominant trait (B) it will always be dominant, even if it has a recessive trait (b)

What is the probability of the offspring having a recessive genotype?

• 25%

• 0%

• 75%

• 50%

Bb is dominant, recessive or heterozygous dominant?

• dominant

• heterozygous dominant

• recessive

BB is dominant or recessive?

• Dominant

• Recessive

Draw a punnet square for BB and Bb

Answer explanation

BB goes on the top, Bb goes on the side.

Draw a punnet square for BB and bb

Answer explanation

BB goes on the top, bb goes on the side.

Draw a punnet square for Bb and bb

Answer explanation

Bb goes on the top, bb goes on the side.

Draw a punnet square for Bb and Bb