Traits and Reproduction Review

In which organelle are proteins made? Think about the activity with the K*NEX.

• Nucleus

• Cell Wall

• Ribosome

• Mitochondria

Which of the following is the "recipe" for making proteins? (Hint: It contains all the genetic material.)

• DNA

• Cells

• RNA

• Proteins

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A chromosome, which is a long piece of DNA, can be found in what organelle in the cell?

• Cell Wall

• Mitochondria

• Nucleus

• Golgi Body

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Which of the following is smaller than DNA?

• Gene

• Protein

• Chromosome

• Cell

Three tigers have different parents. They all have the same proteins for stripe pattern in their cells. What can you say about the tigers' stripe patterns?

• They will have the same stripe patterns since all tigers have the same stripe patterns.

• They will have the same stripe patterns since their proteins for stripe pattern are the same so the proteins will connect in the same way.

• They will have different stripe patterns because even with the same proteins for stripe pattern, the proteins can connect in different ways.

• They will have different stripe patterns since only offspring from the same parents have the same stripe patterns.

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There are two junco birds that each have different proteins in their cells for beak pointiness. They have different parents. What can you say about the birds' beak pointiness?

• They will have the same beak pointiness because even with different proteins for beak pointiness, the proteins can connect in the same way.

• They will have different beak pointiness since offspring from different parents will have different beak pointiness.

• They will have different beak pointiness since their proteins for beak pointiness are different so the proteins will connect in different ways.

• They will have the same beak pointiness since all junco birds have the same beak pointiness.

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Short hair is dominant over long hair in guinea pigs.  A female guinea pig is short haired with heterozygous alleles.  Which of the following is an example of heterozygous alleles?

• HH

• hh

• Hh

• None of these

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Short hair is dominant over long hair in guinea pigs.  A male guinea pig is long haired with homozygous alleles.  Which of the following is an example of homozygous recessive alleles (not dominant)?

• hh

• HH

• Hh

• hH

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Short hair is dominant to long hair.  Looking at the Punnett Square, what is the probability of the offspring having long hair?

• 25%

• 50%

• 75%

• 100%

• 0%

Answer explanation

Anytime there is a capital letter, it is dominant and takes over the recessive gene. Two of the options will have the capital letter, so there is a 50% possibility.

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Where does an offspring receive their genes from?

• Only it's mother

• Only it's father

• One set from it's mother and one set from it's father.

• From proteins

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