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Year 12 QCE Biology practice questions
This public preview page identifies the planned Year 12 QCE Biology demo route and links it to curriculum coverage while the reviewed sample question set is being completed.
Sample-question focus
The planned public sample is for Year 12 QCE Biology practice and will open after the demo questions are reviewed.
Skills covered
Practice cells, living systems, ecosystems, genetics, evolution, biodiversity, disease, biotechnology, and scientific inquiry.
Exercise and test mode
The route is public now; the exercise and test preview will become available after the curated question set is ready.
Curriculum link
Compare this demo with the QCE Year 11-12 Biology curriculum page to scan related topics, subtopics, and pathway coverage.
These sample questions are visible on the page before login. Use them to check the style of the answers and worked explanations, then open the no-login demo for a longer practice set.
practiceQCE Year 12 Biology practice questionsDNA and geneshardprotein-synthesis diagram
1. A DNA template triplet is CGA. Which mRNA codon is transcribed from it?
Choices
GCU
CGA
GCT
UCG
Explanation:
RNA uses complementary pairing with U in place of T: C pairs with G, G with C, and A with U.
practiceQCE Year 12 Biology practice questionsHeredityhardPunnett square
2. A Punnett square shows Bb x bb. What proportion of offspring are expected to be bb?
Choices
50%
25%
75%
100%
Explanation:
The Bb parent can pass B or b, while the bb parent passes b. Half the boxes are bb.
practiceQCE Year 12 Biology practice questionsImmunityhardimmune-response graph
3. The graph shows antibody concentration rising after vaccination without severe illness. What is the role of the vaccine antigen?
Choices
It stimulates immune memory.
It becomes a ribosome.
It destroys every antibody.
It prevents all cell division.
Explanation:
Vaccine antigens can trigger lymphocyte activation and memory-cell formation without causing the full disease.
practiceQCE Year 12 Biology practice questionsContinuity of lifeharddisease-spread graph
4. A disease curve falls after the average number of new infections per case drops below 1. Which statement is supported?
Choices
Transmission is not being sustained.
The pathogen has no genetic material.
Every host is infected at once.
The population must be extinct.
Explanation:
When each case causes fewer than one new case on average, the outbreak declines over time.
practiceQCE Year 12 Biology practice questionsBiotechnologyhardDNA gel diagram
5. A gel diagram shows the smallest DNA fragment at the band furthest from the wells. Which labelled band is smallest?
Choices
Band D
Band A
Band B
The well
Explanation:
Small DNA fragments move more easily through the gel and travel further from the wells.
practiceQCE Year 12 Biology practice questionsHomeostasishardhomeostasis loop
6. A feedback loop shows blood glucose dropping below normal during fasting. Which hormone response helps raise it?
Choices
Glucagon secretion increases.
Insulin secretion increases only.
Antibodies digest glucose.
Blood glucose cannot change.
Explanation:
Glucagon stimulates release of glucose into the blood, helping return levels toward normal.
For parents checking senior maths readiness
Year 10 practice can help identify whether a student is comfortable with algebra, geometry, trigonometry, statistics, and probability before choosing senior maths pathways. The demo is a quick way to sample those areas without creating an account.
This demo is in progress
In progress
Year 12 QCE Biology is available to purchase, and the public demo preview is still being prepared.
Students can use the purchased subject once subscribed; this anonymous preview will be opened after the curated public question set is ready.
Does this page include Year 12 QCE Biology practice questions?
Not yet. The Year 12 QCE Biology demo route is public, but the interactive sample questions will open after the reviewed public set is ready.
Can students try the demo without signing up?
No sign-up is required to view the preview status. The no-login interactive demo will be available after the sample set is completed.
How does this demo relate to curriculum coverage?
This demo is linked with the QCE Year 11-12 Biology curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.
