LGF- Punnet Squares

Both parents in this Punnet square

• are homozygous dominant
• are homozygous recessive
• are heterozygous
• have blue eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The genotypic ratio here is

• 25% blue eye 75 % brown eye 
• BB = 25% Bb = 50% bb = 25%
• BB= 50 % bb = 50%
• All brown eye

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

How many boxes would say BB?

• 1
• 2
• 4
• 0

Tags

NGSS.HS-LS3-1

What is the genotypic ratio here

• TT = 25% Tt= 50% tt=25%
• all tall
• TT= 75% tt = 25%
• Tt = 100%

Tags

NGSS.HS-LS4-3

To express the recessive trait you must be

• homozygous dominant
• heterozygous
• alleleerific
• homozygous recessive

Tags

NGSS.HS-LS3-2

How do two purple flowers produce white flower offspring? 

• They cant have white flowered offspring
• Both flowers are heterozygous and can pass on the white allele
• They are both homozygous Dominant
• They do not have the recessive allele in their genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is Heterozygous?

• Tt

• BB

• ff

• Dominant

Tags

NGSS.HS-LS3-2

Which is homozygeous?

• Tt

• BB

• Ff

• Blue

What are the chances that the offspring will have homozygous recessive traits?

• 1 in 4

• 3 out of 4

• 75%

• 50%

Tags

NGSS.HS-LS3-3

What are the chances of heterozygous genotypes in offspring?

• 50%

• 25%

• 1 in 4

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3