A. Draw a labelled diagram of L.S. of an embryo of grass (any six labels).

B, Give reason for each of the following:

(i) Anthers of angiosperm flowers are described as dithecous.
(ii) Hybrid seeds have to be produced year after year.

Question

Trying to find the right answer to this..

Anonymous · Accepted Answer

(A) L.S. of an embryo of grass.

. width=119

B

i. Each anther of the angiosperm flower is bilobed in nature with two layered protection called theca (dithecous). Each theca is separated by longitudinal grooves. Bilobed nature is distinct in transverse section, microsporangia is located at the corners of the tetragonal structure.

ii. After first generation, hybrid plants lose their characteristic property and do not maintain the hybrid nature The hybrid traits in the progeny will segregate and will not maintain the hybrid characters. Thus, the hybrid seeds have to be produced year after year .

A. Draw a labelled diagram of L.S. of an embryo of grass (any six labels).
B, Give reason for each of the following:
(i) Anthers of angiosperm flowers are described as dithecous.
(ii) Hybrid seeds have to be produced year after year.

Sexual Reproduction in flowering Plants

Biology

A. Draw a labelled diagram of L.S. of an embryo of grass (any six labels). B, Give reason for each of the following: (i) Anthers of angiosperm flowers are described as dithecous.(ii) Hybrid seeds have to be produced year after year.

Sexual Reproduction in flowering Plants

Biology

A. Draw a labelled diagram of L.S. of an embryo of grass (any six labels).
B, Give reason for each of the following:
(i) Anthers of angiosperm flowers are described as dithecous.
(ii) Hybrid seeds have to be produced year after year.