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jb437635 jb437635
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13 years ago
From Mastering Bio:

Auxin is a plant hormone that _____.

A.) is expressed in gradients along the plant body
B.) is expressed at high levels in specific plant structures such as roots and fruits
C.) controls the formation of flowers
D.) All of the listed responses are correct.
Source  Biological Science-4th ed., Freeman
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wrote...
#1
13 years ago
B I think  Slight Smile
wrote...
#2
Educator
11 years ago
Quote from: littlechook16 (13 years ago)
B I think  Slight Smile

Not sure if this is correct.

• Auxin: cell-to-cell signal molecule (protein hormone)
o produced in shoot apical meristem - transported toward basal parts of embryo
o concentration of auxin along apical-basal axis of plant forms a concentration gradient
   --- provides positional information
o part of regulatory cascade that triggers production of MONOPTEROS and other regulatory transcription factors - setting up the apical-basal axis.
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