Recombinant DNA Technology
Why is golden rice pale yellow in color?

It is rich in chlorophyll b.
It is rich in phycobilins.
It is rich in beta-carotene.
It is rich in chlorophyll a.

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Recombinant DNA Technology
An expression vector

All of these
always contains an origin of replication
usually contains a gene that confers antibiotic resistance to the bacterial host
always contains DNA segments for the regulation of mRNA production

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Recombinant DNA Technology
Isoschizomers recognize

same recognition sequence but different recognition site
different recognition site and different recognition sequence
same recognition site and recognition sequence
same recognition site and different recognition sequence

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