Question

quick check
use the question below to see how well you understand the methods by which geneticists produce new alleles of genes.
which of the following allows geneticists to change a specific area of a gene?
choose all that apply
a pcr site-specific mutagenesis
b chemical mutagenesis
c crispr
d none of the above.

Explanation:

PCR site-specific mutagenesis is designed to intentionally and precisely alter a targeted, specific region of a gene. CRISPR-Cas9 systems use guide RNAs to target exact sequences in a gene, allowing for precise edits to that specific area. Chemical mutagenesis causes random mutations across the genome, not targeted changes to a specific gene region.

Answer:

a. PCR site-specific mutagenesis
c. CRISPR