Mono & Dihybrid Crosses and Blood Type

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?

• 0%
• 25%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Long tongues (T) are dominant to short tongues in green tree frogs.  What is the probability that two frogs that are heterozygous for long tongues could produce offspring with short tongues?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?

• 100% Pp (purple)
• 50% Pp (purple); 50% pp (white)
• 75% Pp (purple); 25% pp (white)
• 25% PP, 50% Pp, 25% pp
  75% purple, 25% white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

How can two parents with brown eyes have a child with blue eyes?

• The parents may both have recessive genes for blue eyes.
• The child was born during the winter
• Eye color in humans is not an inherited trait
• The child was deprived of oxygen during its birth

Tags

NGSS.HS-LS3-1

Donkey and the fire-breathing dragon have lots of babies.  If breathing fire is a recessive trait (f), what must be Donkey’s genotype if they have a baby that breathes fire?

• FF
• ff
• Ff
• F

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What goes in box 1

• AABb

• ABAb

• aabb

• AaBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What gamete possibilities could come from this parent's genotype?

• aB, ab, AB, Ab

• aB, Ab, AB, AB

• AB, aB, AB, Ab

• aB, ab, aB, ab

Tags

NGSS.HS-LS3-1

What is the correct prediction when crossing a homozygous dominant parent with a homozygous recessive parent in a dihybrid cross?

• 75% dominant, 25% recessive

• 1:2:1

• 9:3:3:1

• 100% heterozygous