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ribosome
Ribosomes translate RNA into a protein chain.
Medical admission · Other / specialist pathway · Biology
Biological concepts, diagrams and application
Connect biological structures, diagrams and inherited variation.
Original Model Test for Exam unit. These questions and suggested practice times are independent Kidemy material, not an official or past paper. Choose modules for the target programme; all listed subjects are not required for every applicant.
Learn the idea
Answer a biological question by linking a named structure to a process. A diagram needs labels and explanatory arrows. Genetic proportions depend on a stated model; they are chances under assumptions rather than a forecast for a specific family. These are science questions, not personal diagnosis.
Worked example
A thin alveolar wall shortens the diffusion distance. In a simple Aa × aa cross, gametes from Aa are A or a and from aa are a, giving Aa and aa with model probabilities 1/2 each.
- Name the mechanism.
- Show a labelled model or cross.
- Explain the conditions behind the answer.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
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1/2
One of the two equally weighted combinations is aa.
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mitochondrion
Mitochondria carry out oxidative phosphorylation.
Write in your own words. A guardian or teacher should review this response.
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A thin barrier shortens diffusion distance and large surface area provides more exchange area.
Connect each structure to the process.
Write in your own words. A guardian or teacher should review this response.
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Dominance, number of genes and other assumptions determine how genotype relates to phenotype.
State the genetic assumptions rather than diagnosing a real person.
Biology model test
Draw one exchange surface and solve one fictional genetic cross.
Review with a guardian or teacher
- Label structures.
- Show gametes and probabilities.
- Review explanations with a subject teacher.
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