36. Plant Reproduction
Flowers
Multiple Choice
Multiple ChoiceThe ABC model of flower formation suggests that __________.
A
flower development depends on a sequence of three genes turning on in the correct order
B
the A gene turns on sepals, the B gene turns on petals, the C gene turns on stamens, and all three are necessary for carpels to form
C
the A gene initiates the flower bud, the B gene initiates formation of the sterile parts, and the C gene initiates formation of the reproductive parts
D
three mutations must occur at the shoot apical meristem for it to begin forming flower parts instead of leaves
E
pairs of genes are required to form petals and stamens but a single gene can initiate sepals or carpels
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