Which of the following statements are correct about dicot embryo?
(A) A dicotyledonous embryo consists of an embryonal axis and two cotyledons.
(B) The root tip is covered with a root cap.
(C) The portion of embryonal axis above the level of cotyledons is the hypocotyl.
(D) In the grass family, the cotyledon is called scutellum.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A), (B) and (D) only
The embryo of a dicot seed has an embryonal axis, which carries the cotyledons. The part of the axis above the cotyledons is the epicotyl, and the part below them is the hypocotyl.
(A) A dicotyledonous embryo consists of an embryonal axis and two cotyledons. — Correct. A dicot has two cotyledons.
(B) The root tip is covered with a root cap. — Correct. The hypocotyl ends in the radicle, or root tip, which has a root cap.
(C) The portion of embryonal axis above the level of cotyledons is the hypocotyl. — Incorrect. The part above the cotyledons is the epicotyl. It ends in the plumule, or stem tip. The hypocotyl is the part below.
(D) In the grass family, the cotyledon is called scutellum. — Correct. In grasses the single cotyledon is the shield-shaped scutellum.
NCERT Extract:
Embryo – …
