Correct Answer
verified
Multiple Choice
A) is homogeneous.
B) can be established prior to fertilization of the oocyte.
C) can arise due to localized secretion by neighboring cells.
D) is dependent on CAMs.
E) is neither homogeneous nor dependent on CAMs.
Correct Answer
verified
Multiple Choice
A) gene A, sepal formation, whorl 1
B) gene B, petal formation, whorl 2
C) gene E petal formation, whorl 2
D) gene C stamen formation, whorl 3
E) gene B carpel formation, whorl 4
Correct Answer
verified
Multiple Choice
A) Mus musculus
B) Gallus gallus
C) Brachydanio rerio
D) Drosophila melanogaster
E) Mus musculus and Gallus gallus
Correct Answer
verified
Multiple Choice
A) one sponge with a red side and a blue side
B) one blue sponge and one red sponge
C) one sponge with blue and red randomly distributed
D) one purple sponge (mix of red and blue colors)
E) one sponge with alternating red and blue layers of cells
Correct Answer
verified
Multiple Choice
A) by cell division at the tip of the shoots and cell elongation at the tip of the roots.
B) by cell division at the tip of the roots and cell elongation at the tip of the shoots.
C) by cell elongation at both the tip of the shoots and the roots.
D) by cell death (apoptosis) along the radial axis.
E) by cell division at both the tip of the shoots and the roots.
Correct Answer
verified
Multiple Choice
A) the basal region.
B) the apical region.
C) the central region.
D) the apical, basal, and central regions.
E) the apical and basal regions only.
Correct Answer
verified
Multiple Choice
A) VII, IV, V, VI, III
B) IV, VII, V, VI, III
C) IV, VII, II, VI, III
D) VII, IV, V, II, III
E) VII, IV, II, IV, III
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) extracellular positional information.
B) intracellular positional information.
C) both extracellular and intracellular positional information.
D) signals from other developing organisms.
E) all of the signals described in the choices.
Correct Answer
verified
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