Question #6426553Single Choice

Biology

Question

A scientist uses CRISPR-Cas9 to edit a defective gene in human cells but observes no improvement in the gene's function. What is the most likely explanation?

Options

The guide RNA was too long, causing inefficiency.

The target DNA sequence contained multiple mutations.

The cell's repair mechanisms introduced errors after Cas9 cutting.

The Cas9 protein bound to multiple DNA sites simultaneously.

Answer & Analysis

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