Punnett Squares Quiz

In pea plants, yellow seed color is dominant to green seed color. A heterozygous pea plant's genotype would be

• YY

• green

• Yy

• yellow

What are the possible genotypes for this cross?

• TT = 25%, Tt= 50%, tt=25%

• all tall

• TT= 75%, tt = 25%

• Tt = 100%

In pea plants, the purple flowers (P) is dominant to white flowers (p). According to the Punnett Square, what is the probability of an offspring being white?

• 25%

• 0%

• 100%

• 50%

According to this Punnett square, which seed color is dominant?

• yellow

• green

• neither yellow nor green

• both yellow and green

Which genotype would be written in box 2 of this Punnett square?

• BB

• Bb

• bb

• brown

If brown fur (B) is dominant to grey fur (b), what would be the phenotype of the offspring in box 4?

• brown fur

• Bb

• bb

• grey fur

Which of the following is homozygous dominant?

• Tt

• Rr

• MM

• ee

Which of the following is homozygous recessive?

• Tt

• tt

• TT

• T

The physical appearance of the organism is known as the

• Phenotype

• Chromosome

• Nucleictype

• Genotype

A genotype having two different alleles for a trait is called

• protein

• homozygous

• heterozygous

• phenotype