Punnett Squares, Pedigrees and Karyotypes

In humans, having dimples is dominant over not having dimples. If a woman without dimples marries a man heterozygous for dimples, what is the likelihood that their children will have dimples?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In humans, having dimples is dominant over not having dimples. If both parents are heterozygous for dimples, what is the likelihood that their children will have dimples?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In humans, having dimples is dominant over not having dimples. If both parents are heterozygous for dimples, what is the expected PHENOTYPE RATIO for their offspring?

• 1:2:1
• 3:1
• 1:1
• 1:0

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In humans, having dimples is dominant over not having dimples. If both parents are heterozygous for dimples, what is the expected GENOTYPE RATIO for their offspring?

• 1:2:1
• 3:1
• 1:1
• 1:0:0

Tags

NGSS.HS-LS3-3

In the P generation, a purple flower pea plant produces only purple flowers when crossed with a white flower pea plant. This is because the white flower genotype is ...

• Heterozygous
• Homozygous Dominant
• Homozygous Recessive
• Impossible to tell

In the P generation, a purple flower pea plant produces ALL purple flowers when crossed with a white flower pea plant. The OFFSPRING (F1 generation) from this cross have a genotype of...

• PP
• pp
• Pp
• Impossible to tell

Unfortunately, Huntington's Disease is a dominant disorder whose symptoms do not appear until mid- to late - thirties. If a woman heterozygous for Huntington's marries a man who does not have Huntington's, what is the likelihood that their children will have the disorder?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

If a black sheep mates with a white sheep, their offpsring will all be GREY. This is an example of which type of inheritance?

• Incomplete Dominance
• Codominance
• Sex-Linked Inheritance
• Recessive Inheritance

In sheep, wool color can be black, white or (heterozygous) grey. If a black sheep mates with a grey sheep, what would be the expected probabilities of their offspring?

• 100% Black
• 75% Black, 25% White
• 25% Black, 50% Grey, 25% White
• 50% Black, 50% Grey

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Red tulips when crossed with white tulips produce (heterozygous) pink tulips. This is an example of which type of inheritance?

• Multiple Allele Blood Types
• Sex-Linked
• Incomplete Dominance
• Codominance