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TN-BIO-GR5-89561 · v2.-7

Inherited Variation

Grade 5 · Biology · Genetics · Edexcel

Grade

Grade 5

Subject

Biology

Topic

Genetics

Subtopic

Inherited Variation

Curriculum

Edexcel

Difficulty

Core

Time

25 minutes

Total marks

36

Student name

Teacher name

Date

Learning objectives

  • Recognise inherited variation accurately in biology contexts.
  • Explain the underlying rule of inherited variation in the student's own words.
  • Apply inherited variation to multi-step and unfamiliar problems.
  • Justify a chosen method and identify errors in another student's work.

Skills assessed

  • Fluency and recall
  • Method and setting out
  • Reasoning and justification
  • Problem solving in context
  • Self-assessment

Instructions

  1. Write your name, your teacher's name and the date in the header.
  2. Answer every question in the space provided. Continue on the back if needed.
  3. Show all working — method marks are awarded even when the final answer is wrong.
  4. Aim to finish in about 25 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 3 marks

Answer quickly. These check you are ready for the topic.

  1. 1.State one fact you already know about inherited variation.

    [1]
  2. 2.State one fact you already know about inherited variation.

    [1]
  3. 3.Write down one fact you already know about inherited variation.

    [1]

Recall

Bloom: Remember · 3 marks

Complete from memory. No calculator, no notes.

  1. 1.Complete the key term used in inherited variation described here: item 1.

    [1]
  2. 2.Complete the key term used in inherited variation described here: item 2.

    [1]
  3. 3.Complete the key term used in inherited variation described here: item 3.

    [1]

FreeMathWorksheet · TN-BIO-GR5-89561 · v2.-7

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 1 of 4

FreeMathWorksheet · Grade 5 Biology

Inherited Variation

Basic Practice

Bloom: Understand · 4 marks

Work through each item. Show the step you used.

  1. 1.Identify part 1 using the rule for inherited variation.

    [1]
  2. 2.Identify part 2 using the rule for inherited variation.

    [1]
  3. 3.Complete part 3 using the rule for inherited variation.

    [1]
  4. 4.Identify part 4 using the rule for inherited variation.

    [1]

Guided Practice

Bloom: Understand · 6 marks

The first step is given. Finish the reasoning.

  1. 1.Continue the working for part 1. Step 1 has been started for you.

    [2]
  2. 2.Using the first step given, finish part 2. Step 1 has been started for you.

    [2]
  3. 3.Complete the method for part 3. Step 1 has been started for you.

    [2]

FreeMathWorksheet · TN-BIO-GR5-89561 · v2.-7

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 2 of 4

FreeMathWorksheet · Grade 5 Biology

Inherited Variation

Independent Practice

Bloom: Apply · 8 marks

No scaffolding. Set out your full method.

  1. 1.Solve part 1 on inherited variation without help.

    [2]
  2. 2.Work out fully part 2 on inherited variation without help.

    [2]
  3. 3.Work out fully part 3 on inherited variation without help.

    [2]
  4. 4.Determine part 4 on inherited variation without help.

    [2]

Challenge Questions

Bloom: Analyse · 6 marks

Harder items. Attempt every one, even partially.

  1. 1.Find and justify the statement in part 1 about inherited variation.

    [3]
  2. 2.Prove the statement in part 2 about inherited variation.

    [3]

Real-life Application

Bloom: Apply · 6 marks

Use the skill in context. State units in your answer.

  1. 1.In context, work out a real biology situation that depends on inherited variation.

    [3]
  2. 2.In context, work out a real biology situation that depends on inherited variation.

    [3]

FreeMathWorksheet · TN-BIO-GR5-89561 · v2.-7

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 3 of 4

FreeMathWorksheet · Grade 5 Biology

Inherited Variation

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

  1. 1.Describe how confident you feel with inherited variation and what you will practise next.

    [—]
  2. 2.Reflect on how confident you feel with inherited variation and what you will practise next.

    [—]

FreeMathWorksheet · TN-BIO-GR5-89561 · v2.-7

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 4 of 4