1. Draw a simple table or diagram showing how Gregor Mendel crossed pea plants and tracked one trait (e.g., flower colour). Label parental and offspring generations.

2. Create a mini-Punnett square showing codominance, another one incomplete dominance and sex-linkage.

Strand ii – Interpreting Data

3. In codominance, crossing two pink flowers gives 1 red : 2 speckled : 1 white. What percentage of offspring would you expect to be speckled?

4. A cross between X-linked alleles for colour blindness (N=normal): mother X^N X^n, father X^n Y. **What is the probability that a girl vs. a boy is color blind?

5. A student predicts: “If both parents have one recessive allele, then all children will show that recessive trait.” Based on Mendelian crosses for a single trait (e.g., earlobe attachment), is this hypothesis always correct? Explain why or why not using examples.

6. A student claims: “Blood type inheritance always follows a simple dominant-recessive pattern.” Evaluate this statement using your knowledge of codominance and multiple alleles.

Strand iv – Discuss the validity of the method

7. Imagine a student wants to test sex-linked traits in fruit flies. What could make their results less reliable or valid? List at least two possible issues.

8. In a mitosis model simulation, students separated chromosomes manually. What aspects of the method could affect accuracy? How could it be improved?

Strand v – Improvements or extensions

9. Suggest one improvement for a plant inheritance experiment that would give more reliable data (consider sample size, repetition, or controlling variables).

10. Suggest one extension to a meiosis simulation that would help students better understand the process (compared to our classroom trial).

1. Give one real-life example of how understanding Mendel’s principles helps farmers or gardeners improve crops. Explain in 1–2 sentences.

2. Blood typing is used in medicine. Write one sentence explaining how knowing blood type can prevent problems during transfusions.

3. Explain one way that learning about sex-linked traits could help doctors or families manage inherited conditions.

4. Using meiosis, explain one reason why variation is important in agriculture or in nature.

D(ii) – Discuss and analyse implications of science applications
5. ADVANCED(Not directly relevant for AssessPrep): Codominance in blood type can affect organ donation compatibility. Explain why understanding this is important for communities.
6. Breeders prefer a certain appearance of their animals because it sells better. Discuss one possible consequence of breeding only that color (think about variation, disease, or market risk).
8. Why might it be risky to rely only on Mendelian predictions in real life? Give one example.

Optional Extension – Reflection / Language Use (D iii)
9. List all key scientific terms you have used when answering D(i) and D(ii) questions in this Padlet column