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Course: Edexcel Igcse Biology Modular — UNIT 2
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Edexcel Igcse Biology Modular — UNIT 2

Unit 2 · Transport, Excretion & Coordination

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Unit 2 · Reproduction & Inheritance

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Unit 2 · Ecology & the Environment

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Unit 2 · Use of Biological Resources

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Quiz

Inheritance (Unit 2) – Check yourself

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Inheritance Edexcel O Level Modular Biology check yourself quiz: free practice for Edexcel Modular – OL. Work through this Inheritance Edexcel O Level Modular Biology check yourself quiz and get instant feedback on every answer. If you get stuck, review the 3.2 Inheritance — Notes lesson. More practice: Edexcel Modular – OL — all units. Syllabus: Pearson Edexcel International GCSEs.

  • Questions count: 7
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
What does a gene code for?
A specific protein
A chromosome
A whole cell
A nucleotide
2.
An organism with genotype Bb is described as
homozygous dominant
heterozygous
homozygous recessive
codominant only
3.
Which is an example of polygenic inheritance?
ABO blood group
Cystic fibrosis
Human height
Pea seed shape
4.
Which statement best describes Genotype?
Having two different alleles of a gene.
An allele that is expressed only when two copies are present (no dominant allele).
An allele that is expressed in the phenotype even when only one copy is present.
The combination of alleles an organism has.
5.
Which statement best describes Allele?
The combination of alleles an organism has.
One of two or more alternative forms of a gene.
A section of DNA that codes for a specific protein.
Having two identical alleles of a gene.
6.
Which statement best describes Phenotype?
The observable characteristics of an organism, resulting from its genotype and the environment.
A section of DNA that codes for a specific protein.
When both alleles in a heterozygote are fully expressed in the phenotype.
Having two different alleles of a gene.
7.
Which statement best describes Gene?
The observable characteristics of an organism, resulting from its genotype and the environment.
The combination of alleles an organism has.
One of two or more alternative forms of a gene.
A section of DNA that codes for a specific protein.
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Part of Unit 2 · Reproduction & Inheritance — see every lesson and quiz in this unit.
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