Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Life Sciences Developmental Biology Morphogenesis and organogenesis in plants
AP1 (APETALA) is one of the floral meristem-identifying genes. In wild type Arabidopsis thaliana plants, transformed with AP1:: GUS beta glucoronidase activity is seen in the floral meristem only after the commitment of flowering. Ectopic expression of AP1 :: GUS in the embryonic flower (EF) mutant background results in GUS activity throughout the shoots in four-day-old seedlings; these observations suggest that AP1 is:
1
not involved in flowering
2
involved in repression of flowering
3
involved in promoting flowering
4
stimulation of flowering in the emf background
5
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