WA Science Practice

In a punnet square where are the parent alleles written?

• Top and inside the boxes
• Only on the left and right side of the boxes. 
• outside of the boxes (top and left side)
• All on the top side of the boxes

Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?

• 25%
• 1%
• 10%
• 0%

Tags

NGSS.HS-LS3-3

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.MS-LS1-5

Aa, DD, Bb, yy are all examples of

• genotypes

• phenotypes

AA and Aa always show up as the _______________ trait.

• dominant

• recessive

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A green pea plant (GG) is being crossed with a green pea plant (Gg). What are the possible phenotypes (%) of the offspring??

• 100 % rainbow

• 50% yellow and 50% green

• 100% green

• 100% yellow

A tall plant (TT) is crossed with a tall plant (Tt). What are the possible genotypes of the offspring?

• 2 TT: 2 Tt: 0 tt

• 1 TT: 2 Tt: 1 tt

• 2 TT: 1 Tt: 1 tt

• 0 TT: 0 Tt: 4 tt

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Tags

NGSS.HS-LS3-1

A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). What are the possible phenotypes (%) of the offspring?

• 100 % tan

• 100 % brown

• 50 % brown and 50% tan

• 75 % brown and 25 % tan