How is the coding sequence of a-galactosidase considered better than the ones identified by you in the diagram? Explain.

How is the coding sequence of a-galactosidase considered better than t

1.	How is the coding sequence of a-galactosidase considered better than the ones identified by you in the diagram? Explain.
Answer» Alternative selectable markers have been developed that differentiate recombinants from non-recombinants on the basis of their ability to produce colour in the presence of an enzyme (3-galactosidase which results into an inactivation of the enzyme. This is referred to as insertional inactivation.

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How is the coding sequence of a-galactosidase considered better than the ones identified by you in the diagram? Explain.

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