genetics review

​Review

Multiple Choice

What is heredity

• Traits that you do NOT get from parents

• Passing notes to a friend

• Passing traits from one generation to the next

• genetics

The physical version of the trait, the thing that you SEE.

Given as a written observation

Phenotype

The gene pair that creates the given trait.

Shown as 2 of the SAME letter with variation in capitalization

Genotype

If you remember...

Match

Match the following

• Dominant Trait

• Recessive Trait

• Allele

• Heterozygous

• Homoz

The influential trait

The masked trait

2+ versions of a given trait

A genotype with a dom and rec (Tt)

A genotype with only dom or rec (TT, tt)

• The influential trait

• The masked trait

• 2+ versions of a given trait

• A genotype with a dom and rec (Tt)

• A genotype with only dom or rec (TT, tt)

Drag and Drop

Which of the following genotypes ​are Heterogeneous​? ​

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Drag these tiles and drop them in the correct blank above

Hh

GG

PP

tt

Qq

Dd

Ll

Rr

RR

bb

A hybrid is a mixture of things and is another word for heterozygous.

Have you heard hybrid be used before? where?

Hybrid

Another word for Homozygous is purebred!

Have you heard the word purebred anywhere before? Where?

Purebred

Did you know:

There are only so many outcomes you can get from predicting genetics...

Draw

SpongeBob SquarePants recently met SpongeSusie Roundpants at a dance. SpongeBob is heterozygous for

his square shape, but SpongeSusie is round.

Create a Punnett square to show the possibilities that would

result if SpongeBob and SpongeSusie had children. Square = R, round = r.

Draw

Everyone in Squidward’s family has light blue skin, which is the dominant trait for body color in his

hometown of Squid Valley. His family brags that they are a “purebred” line. He recently married a nice girl

who has light green skin, which is a recessive trait.

Create a Punnett square to show the possibilities that

would result if Squidward and his new bride had children.

*Use B to represent the dominant gene and b to

represent the recessive gene.

Draw

SpongeBob’s aunt is famous around town for her itty, bitty stubby nose! She recently met a cute

squarepants fellow who also has a stubby nose, which is a recessive trait. Would it be possible for them to

have a child with a regular long nose? Why or why not?

Create a Punnett square to help you answer this

question.

Open Ended

So... would it be possible for SpongeBob's aunt's kid to have a long nose? Explain in 2 complete sentences (with evidence you remember from the Punnett square).

Multiple Select

Homozygous is the same as _________.

• Purebred

• hybrid

• TT , tt

• Tt

Multiple Select

heterozygous is the same as _________.

• Purebred

• hybrid

• TT , tt

• Tt

Open Ended

Do you think that what we consider dominant or recessive is the same in other countries? EXPLAIN in 2+ complete sentences.