Microarrays used for gene expression studies detect

  1. the number of chromosomes
  2. the rate of PCR
  3. the size of proteins
  4. which genes are being transcribed into mRNA
Answer

D) which genes are being transcribed into mRNA

cDNA from mRNA hybridises to probes. AS & A Level Biology · Topic 19 Genetic Technology · 19.1 Principles of genetic technology

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