CAIE A-Level Biology 19.1.3 Sources of Genes
Practise comparing genes isolated from donor DNA with cDNA made from mRNA and sequences synthesised chemically from known nucleotide information.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- A2
Exam points
- outline gene isolation from donor DNA using a suitable restriction endonuclease
- trace mRNA through reverse transcriptase and DNA polymerase to double-stranded cDNA
- explain why intron-free cDNA, unlike human genomic DNA, can be expressed in bacteria
