Middle School Genetics

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3

genotype or phenotype: Blue eyes

• genotype

• phenotype

Tags

NGSS.HS-LS3-1

Genotype or phenotype: Rr

• genotype

• phenotype

Tags

NGSS.HS-LS3-2

Genotype or phenotype: freckles

• genotype

• phenotype

Which is heterozygous?

• WW

• Yy

• qq

• TT

Which is homozygous recessive?

• ee

• Hh

• PP

• Vv

How much does each box in the punnet square account for?

• 25%

• 50%

• 75%

• 100%

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

Heterozygous is when...

• the alleles are the same.

• the alleles are different.

• the alleles are absent.

• the alleles are present.

Tags

NGSS.HS-LS3-2

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa