Punnett Squares Quiz

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

What is the purpose of a Punnett Square?

• To predict the weather

• To calculate mathematical problems

• To predict the possible genetic outcomes of a cross

• To map out a family tree

What does a capital letter represent in a Punnett Square?

• A recessive trait

• A dominant trait

• A mutation

• An environmental factor

If a plant has the genotype Tt, what does this mean?

• It has two dominant traits

• It has two recessive traits

• It has one dominant and one recessive trait

• It is mutated

Tags

NGSS.HS-LS3-2

In a cross between two heterozygous (Tt) plants, what is the probability of getting a plant with the recessive trait (tt)?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

What does the term "homozygous" mean?

• Having two different alleles for a trait

• Having two identical alleles for a trait

• Having no alleles for a trait

• Having mutated alleles for a trait

Which of the following is an example of a phenotype?

• Blue eye color

• Bb genotype

• The presence of a recessive allele

• A Punnett Square

If a pea plant's genotype is "rr", what can we infer about its alleles?

• It has two dominant alleles

• It has one dominant and one recessive allele

• It has two recessive alleles

• It has no alleles

What is the genotype of an organism that is heterozygous for a trait?

• AA

• aa

• Aa

• None of the above

In genetics, what does the term "genotype" refer to?

• The physical appearance of an organism

• The genetic makeup of an organism

• The environment in which an organism lives

• The study of genes and their functions

Tags

NGSS.HS-LS1-1