Punnett Squares

Dominant or recessive?
tt

• Dominant 
• Recessive

Tags

NGSS.HS-LS3-1

Dominant or recessive?
Dd

• Dominant
• recessive
• neither
• homozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Emily has brown hair. Which is most likely a true statement about Emily?

• Emily’s favorite color is brown.
• Emily has a parent with brown hair.
• Emily’s older brother has brown hair. 

What should students use to identify the percent chance of a trait being passed down from a parent to its offspring?

• a graph
• a flow chart
• a data table
• a Punnett square

Tags

NGSS.HS-LS3-3

Which statement best supports why many offspring look similar to their parents?

• Offspring inherit characteristics from one parent.
• Offspring inherit characteristics from both parents.
• Parents choose which characteristics to pass on to their offspring.
• Parents choose to change their appearance to match that of their offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Bob is a tall, slender young man with red hair and blue eyes. Which couple would most likely be Bob’s parents?

• a slender, red-haired father and a tall, blue-eyed mother
• a tall green-eyed father with long brown hair and a short, brown-haired mother
• a short, green-eyed, black-haired father and a tall, brown haired, brown-eyed mother
• a short, plump brown-haired father with freckles and a short, blue-eyed red-haired mother

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white

• all Pp
• all PP
• Pp,PP,Pp,PP
• all pp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

When the allele combination is a dominate and a recessive trait together which trait will be seen?

• Dominate
• Recessive
• none
• both

Tags

NGSS.HS-LS3-1

Homozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Tags

NGSS.HS-LS3-1

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3