E-PolyLearning

21. Acetabularia mediterranea has a cap of
a. regular shape
b. circular shape
c. triangular shape
d. cone shape
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Answer: (a).regular shape

22. Growth of multicellular plant is divided into
a. one phase
b. two phases
c. three phases
d. four phases
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Answer: (d).four phases

23. In plants, growth and development involve
a. cell division
b. elongation
c. differentiation
d. all of the above
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Answer: (d).all of the above

24. Somites are compact cell masses lying immediately lateral to
a. neural folds
b. neural plate
c. neural groove
d. yolk
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Answer: (a).neural folds

25. Mesoderm cells migrate medially and caudally from both sides and create a mid line thickening called
a. primitive groove
b. primitive ridge
c. primitive pit
d. primitive streak
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Answer: (d).primitive streak

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