Year 12 WACE Biology sample questions

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Year 12 WACE Biology practice questions

Use this no-login public demo to preview Skill Align's Year 12 WACE Biology sample questions, explanations, exercise mode, and test mode before regular practice.

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Try a short public sample of Year 12 WACE Biology questions selected from the reviewed Skill Align demo set.

Skills covered

Practice cells, living systems, ecosystems, genetics, evolution, biodiversity, disease, biotechnology, and scientific inquiry.

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Sample practice questions

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practice WACE Year 12 Biology practice questions DNA and heredity hard protein-synthesis diagram

1. The protein-synthesis model shows mRNA codon UUU. Which amino acid information carrier is read at the ribosome?

Choices

mRNA codon
Cell membrane lipid
Antibody only
Starch molecule

Explanation:

The ribosome reads mRNA codons during translation to assemble a polypeptide.

practice WACE Year 12 Biology practice questions Inheritance hard Punnett square

2. A Punnett square shows TT x tt. What genotype will all offspring have?

Choices

Tt
TT
tt
Tt and tt equally

Explanation:

Each offspring receives T from one parent and t from the other, so all are heterozygous Tt.

practice WACE Year 12 Biology practice questions Disease hard disease-spread graph

3. A transmission graph shows cases rising while each case infects more than one new person on average. Which value best describes this situation?

Choices

R is greater than 1.
R equals 0 only.
R is below 1.
R cannot affect cases.

Explanation:

If each infected person infects more than one new person on average, case numbers can increase.

practice WACE Year 12 Biology practice questions Immunity hard immune-response graph

4. An immune diagram shows antibodies binding to a specific antigen shape. Which statement best explains specificity?

Choices

Antibody binding sites match particular antigens.
Antibodies bind all molecules equally.
Antigens are always enzymes.
Red blood cells make antibodies.

Explanation:

The shape of an antibody binding site determines which antigen it binds most effectively.

practice WACE Year 12 Biology practice questions Biotechnology hard DNA gel diagram

5. A DNA gel shows a child band pattern that must include one matching band from each parent. Which lane best supports Parent B?

Choices

Lane B
Lane A only
The marker ladder
No lane

Explanation:

Inheritance evidence in a gel profile is supported when child bands can be accounted for by the parent lanes.

practice WACE Year 12 Biology practice questions Evolution hard selection graph

6. A selection graph shows allele B increasing from 0.30 to 0.55 over generations. Which statement is best supported?

Choices

Allele B became more common.
Allele B disappeared.
All alleles stayed equal.
The graph shows protein synthesis only.

Explanation:

The frequency increased from 0.30 to 0.55, so allele B became more common in the population.

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Practice Summary

Year 12 · WACE Biology · Test mode · 22 questions · 10 min

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Correct answers Pending

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WACE Biology practice questions FAQ

Does this page include Year 12 WACE Biology practice questions?

Yes. This public demo includes reviewed Year 12 WACE Biology sample questions so families can preview the Skill Align practice style before regular use.

Can students try the demo without signing up?

Yes. The public demo can be opened without signing up, and the attempt stays in the page instead of being saved to a student record.

How does this demo relate to curriculum coverage?

This demo is linked with the WA Year 11-12 Biology curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.