A scientist has recorded every base in one chromosome of an organism. The organism has several different chromosomes. Only one gene on the recorded chromosome codes for enzyme X.
Which statement is correct?
The record contains the whole genome, and all of it is the gene for X.
The record contains the gene for X, but only part of the genome.
The record contains the gene for X, and each base is a separate genome.
The record contains the whole genome, but only part of the gene for X.
44 exam-style questions on Edexcel GCSE Biology 3.2 DNA and protein synthesis, covering 3.2.1 DNA structure as a polymer, 3.2.2 Genome and gene definitions, 3.2.3 Extracting DNA from fruit, 3.2.4 Base order determines protein shape, 3.2.5 Stages of protein synthesis, 3.2.6 Non-coding DNA variants affecting phenotype, and 3.2.7 Coding DNA variants affecting phenotype. Each one has a worked solution and a mark scheme showing where the marks go.