Question

Several genes in the strigolactone signaling pathway have the name “MAXIMUM AXILLARY BRANCHING” (MAX1, MAX2, etc.). Based on these gene names, strigolactone most likely

A) Promotes outgrowth of axillary branches

B) Inhibits outgrowth of axillary branches

C) Promotes formation of axillary buds

D) Inhibits formation of axillary buds

E) Causes branches to elongate faster

F) Causes branches to elongate slower

Answer 1

B is the answer.

The several genes In Strigolactone signalling pathway are named as "MAXIMUM AXILLARY BRANCHING”. This suggests that the presence of Strigolactone inhibits the axillary branching.

Because the name of genes is given on the basis of the function found in the plants after they are deleted. In this case, the gene expresses maximum axillary branching when Strigolactone is not found.

That's why it inhibits the axillary growth.

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