42.
Some of the cytokinins used in plant tissue culture media are given below:
P. BAP
Q. Zeatin
R. Kinetin
S. 2iP
Which of these are synthetic analogs?

43.
Somatic embryogenesis is a procedure in plant tissue culture methodology described best as

45.
Determine the correctness or otherwise of the following Assertion [A] and the Reason [R].
Assertion [A]: A genetically engineered rice that produces beta-carotene in the rice grain is called Golden rice.
Reason [R]: Enabling biosynthesis of provitamin A in the rice endosperm gives a characteristic yellow/orange color.

46.
Match the herbicides in Group I with the target enzymes in Group II.
Group I Group II
P. Glyphosate 1. Nitrilase
Q. Bromoxynil 2. Acetolactatesynthetase
R. Sulphonylureas 3. Dehalogenase
S. Dalapon 4. 5-Enolpyruvyl shikimate
    3-phosphate synthase

47.
Plant secondary metabolites production in suspension culture is mainly targeted for

50.
Expression of antisense RNA of ACC synthase in transgenic tomato plants inhibited the synthesis of ethylene resulting in