Selaginella and Salvinia are considered to re | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The evolution of the seed habit is a critical evolutionary trend in plants. In $Selaginella$ and $Salvinia$,the female gametophyte is not complete

Vedclass · Accepted Answer

The development of the embryo takes place within the female gametophyte,which is retained on the parent sporophyte.

Vedclass · Answer

(A) The evolution of the seed habit is a critical evolutionary trend in plants. In $Selaginella$ and $Salvinia$,the female gametophyte is not completely independent; instead,it is retained on the parent sporophyte for a variable period. The development of the zygote into a young embryo takes place within the female gametophyte,which is held on the parent sporophyte. This retention and development of the embryo within the female gametophyte,which is attached to the parent plant,is a precursor to the seed habit found in higher plants (gymnosperms and angiosperms).

$Selaginella$ and $Salvinia$ are considered to represent a significant step towards seed habit because-

Similar Questions

In which group of the following would you place the plants having vascular tissue and lacking seeds?

Horsetail and fern are

Statement $X :$ $Selaginella$ is a heterosporous,gymnosperm plant.
Statement $Y :$ It produces two different types of spores.

The sporophyte of $Pteris$ is:

In the prothallus of a vascular cryptogam,the antherozoids and eggs mature at different times. As a result

Vedclass Test Series

Exam Paper Generator

Online Exam Module