NEET Biology question

Which of the following is a difficulty in getting prokaryotic cells to express eukaryotic genes?

(A)The signals that control gene expression are different and prokaryotic promoter regions must be added to the vector
(B)The genetic code differs between the two because prokaryotes substitute the base uracil for thymine
(C)Prokaryotic cells cannot transcribe introns because their genes do not have themCorrect
(D)The ribosomes of prokaryotes are not large enough to handle long eukaryotic genes

Answer: (C)

Solution

The genetic code is universal (ruling out option b), ribosome size is not a real barrier (ruling out d), and while promoter differences are a real consideration, NCERT specifically

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Question ID VK-124837