CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique scientists can add, remove, or modify sections of the DNA sequence.
How can scientists use this technique to control gene expression?
A.By activating or deactivating specific genes
B.By determining the number of chromosomes in an organism.
C.By calculating the number of genes different organisms produce
D.By identifying how closely related one individual is to another
It can be a decimal number but is often written as a fraction and seldom as a mixed number

The CRISPR-Cas9 genome editing system can be used to control gene expression by activating or deactivating specific genes (Option A).

The CRISPR-Cas9 is a genome engineering tool that can be used to edit any genome sequence, including gene sequences.

This tool (CRISPR-Cas9) makes use of a genome-engineered nuclease called Cas9 that cut the DNA in the region where a single guide RNA (sgRNA) is complementary.

The Cas9 protein can be fused with specific activator or suppressor domains in order to modulate gene expression.

In conclusion, the CRISPR-Cas9 genome editing system can be used to control gene expression by activating or deactivating specific genes (Option A).

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