Decoding Punnett Squares with Puppies

Who was Gregor Mendel and what did he study?

• A monk who researched plant genetics

• A bishop who studied genetics in birds

• A teacher who explored human genetics

• A scientist who studied animal behavior

Tags

NGSS.HS-LS3-2

Why did Gregor Mendel choose pea plants for his genetic studies?

• They grow very quickly

• They have distinct, inheritable traits

• They are easy to find

• They require little care

What is a purebred Labrador retriever?

• A dog that is not suitable for breeding

• A dog with no definable traits

• A dog with Labrador parents and grandparents

• A dog with mixed ancestry

What does it mean if a trait is dominant in genetics?

• It can never be passed to offspring

• It appears only when recessive traits are absent

• It is always hidden

• It always appears if present

In a Punnett square, what does a 'big B' represent?

• A dominant trait

• An unknown trait

• A recessive trait

• A hybrid trait

Tags

NGSS.HS-LS3-2

What is the expected outcome when two hybrid black Labrador retrievers are crossed?

• Equal numbers of black and brown puppies

• Mostly black puppies with some brown

• All brown puppies

• All black puppies

What surprising result can occur when two black hybrid Labradors are crossed?

• A white puppy

• A brown puppy

• A purple puppy

• No puppies

Tags

NGSS.MS-LS3-2

What was the ratio of black to brown puppies in the hybrid Labrador cross?

• 1:1

• 2:1

• 4:1

• 3:1

What ratio did Mendel find in his pea plant experiments?

• 3:1

• 1:1

• 2:1

• 4:1

Why did people initially think Mendel's data might be fraudulent?

• His ratios were too perfect

• He reported no data

• His methods were unclear

• He was known to be untrustworthy