Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Statement I:  A typical angiosperm anther is bilobed with each lobe having two theca, i.e., they are dithecous.

Statement II: The anther is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe.

Options:

Only Statement I is  correct.

Only Statement II is  correct.

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

Correct Answer:

Both Statement I and Statement II are correct.

Explanation:

The correct answer is Option (3) →Both Statement I and Statement II are correct.

Explanation:

Statement I : "A typical angiosperm anther is bilobed, with each lobe having two theca, i.e., they are dithecous."Correct

  • In most angiosperms, the anther is bilobed (has two lobes).
  • Each lobe contains two theca (chambers), making the anther dithecous.
  • The theca contain microsporangia, where pollen grains develop.

Statement II : "The anther is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe."Correct

  • The typical anther is tetragonal (four-sided) and has four microsporangia at its corners.
  • Each lobe contains two microsporangia, leading to four microsporangia in total.
  • These microsporangia later develop into pollen sacs that produce pollen grains.

Final Answer:

Both Statement I and Statement II are correct.