Practice Key Terminology (4.3) - Genetics and Inheritance - IB MYP Class 10 Sciences (Group 4)

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6 sample questions

Question 1.
What is a gene?
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Think about what defines hereditary information.
Question 2.
What do we call different versions of the same gene?
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Consider how traits can vary within species.
3Question 3.
What is the function of a gene?
- A) Determine the weather
- B) Code for proteins
- C) Make energy
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Think about what genes do at the cellular level.
4Question 4.
True or False: Homozygous individuals have different alleles.
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Recall the definition of homozygosity.
Question 5.
Analyze a genetic cross involving a plant species with red and white flowers. Red is dominant (R) and white is recessive (r). Predict the offspring's phenotypes when crossing Rr x Rr.
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Draw a Punnett square and list outcomes.
Question 6.
If two heterozygous individuals, Bb and Bb, have a child, what are the chances of having a child with a recessive trait? Show your workings.
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Remember to analyze the Punnett square for both dominant and recessive combinations.

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