1. Tardigrade
  2. Question
  3. Biology
  4. Read the following four statements:- i. The innermost wall layer of microsporangium is tapetum. ii. Tapetum possesses dense cytoplasm and always have a single nucleus. iii. Microsporangium is surrounded by three wall layers. iv. The typical angiosperm anther is bilobed and each lobe has single theca. How many of the above statements are incorrect?

Q. Read the following four statements:-
i. The innermost wall layer of microsporangium is tapetum.
ii. Tapetum possesses dense cytoplasm and always have a single nucleus.
iii. Microsporangium is surrounded by three wall layers.
iv. The typical angiosperm anther is bilobed and each lobe has single theca.
How many of the above statements are incorrect?

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Solution:

A is the correct statement (The innermost of these wall layers surrounding the microsporangium is the layer of the tapetum), and B, C, D statements are wrong (tapetum possess dense cytoplasm and generally has more than one nucleus). The microsporangium or pollen sac is surrounded by 3-5 wall layers. A typical angiosperm anther is bilobed with each lobe having two theca (i.e., they are dithecous).