Punett Square

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

Dominant or recessive?
tt

• Dominant 
• Recessive

An organism’s physical appearance, or visible traits. 

• Genotype
• Phenotype
• Beanotype
• Notype

Tags

NGSS.HS-LS3-1

Which of the following is homozygous dominant?

• Yy
• Y
• yy
• YY

Tags

NGSS.HS-LS3-1

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive
• dominant
• lower case letter
• both 

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

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

Which of the following is a phenotype?

• Aa
• black hair
• heterozygous genes
• mutated DNA

Tags

NGSS.HS-LS4-3

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

Tags

NGSS.HS-LS3-1

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being white?

• 25%
• 0%
• 100%
• 50%

Tags

NGSS.HS-LS3-3