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Edexcel A-Level Biology AS 2.12 Gene As a Dna Base Sequence Questions

Define a gene as a DNA base sequence coding for a polypeptide, then explain why genomes include non-coding, regulatory and other sequences beyond protein-coding regions.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Define a gene as a DNA base sequence that codes for a polypeptide or protein.
  • Explain why non-coding, promoter, regulatory and other sequences add to genome base-pair length.
  • Connect gene base sequences with the amino-acid sequence of the encoded polypeptide.

Edexcel A-Level Biology AS 2.12 Gene As a Dna Base Sequence Questions question 1

[Maximum number: 1]

Cystic fibrosis is an inherited recessive disease caused by mutations in a gene on chromosome 7.

Give the meaning of the term gene.

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